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      <h1>Cppcheck report - CodeQualityReport: GifImage\decoder\giflib\dgif_lib.c</h1>

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     <p><a href="index.html">Defects:</a> GifImage\decoder\giflib\dgif_lib.c</p>
<a href="14.html#line-51"> unusedFunction 51</a><a href="14.html#line-473"> unusedFunction 473</a><a href="14.html#line-691"> unusedFunction 691</a><a href="14.html#line-907"> constParameter 907</a><a href="14.html#line-925"> unusedFunction 925</a><a href="14.html#line-1030"> duplicateCondition 1030</a><a href="14.html#line-1038"> duplicateCondition 1038</a><a href="14.html#line-1107"> constVariable 1107</a><a href="14.html#line-1108"> constVariable 1108</a>
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<span class="normal">1027</span>
<span class="normal">1028</span>
<span class="normal">1029</span>
<span class="normal">1030</span>
<span class="normal">1031</span>
<span class="normal">1032</span>
<span class="normal">1033</span>
<span class="normal">1034</span>
<span class="normal">1035</span>
<span class="normal">1036</span>
<span class="normal">1037</span>
<span class="normal">1038</span>
<span class="normal">1039</span>
<span class="normal">1040</span>
<span class="normal">1041</span>
<span class="normal">1042</span>
<span class="normal">1043</span>
<span class="normal">1044</span>
<span class="normal">1045</span>
<span class="normal">1046</span>
<span class="normal">1047</span>
<span class="normal">1048</span>
<span class="normal">1049</span>
<span class="normal">1050</span>
<span class="normal">1051</span>
<span class="normal">1052</span>
<span class="normal">1053</span>
<span class="normal">1054</span>
<span class="normal">1055</span>
<span class="normal">1056</span>
<span class="normal">1057</span>
<span class="normal">1058</span>
<span class="normal">1059</span>
<span class="normal">1060</span>
<span class="normal">1061</span>
<span class="normal">1062</span>
<span class="normal">1063</span>
<span class="normal">1064</span>
<span class="normal">1065</span>
<span class="normal">1066</span>
<span class="normal">1067</span>
<span class="normal">1068</span>
<span class="normal">1069</span>
<span class="normal">1070</span>
<span class="normal">1071</span>
<span class="normal">1072</span>
<span class="normal">1073</span>
<span class="normal">1074</span>
<span class="normal">1075</span>
<span class="normal">1076</span>
<span class="normal">1077</span>
<span class="normal">1078</span>
<span class="normal">1079</span>
<span class="normal">1080</span>
<span class="normal">1081</span>
<span class="normal">1082</span>
<span class="normal">1083</span>
<span class="normal">1084</span>
<span class="normal">1085</span>
<span class="normal">1086</span>
<span class="normal">1087</span>
<span class="normal">1088</span>
<span class="normal">1089</span>
<span class="normal">1090</span>
<span class="normal">1091</span>
<span class="normal">1092</span>
<span class="normal">1093</span>
<span class="normal">1094</span>
<span class="normal">1095</span>
<span class="normal">1096</span>
<span class="normal">1097</span>
<span class="normal">1098</span>
<span class="normal">1099</span>
<span class="normal">1100</span>
<span class="normal">1101</span>
<span class="normal">1102</span>
<span class="normal">1103</span>
<span class="normal">1104</span>
<span class="normal">1105</span>
<span class="normal">1106</span>
<span class="normal">1107</span>
<span class="normal">1108</span>
<span class="normal">1109</span>
<span class="normal">1110</span>
<span class="normal">1111</span>
<span class="normal">1112</span>
<span class="normal">1113</span>
<span class="normal">1114</span>
<span class="normal">1115</span>
<span class="normal">1116</span>
<span class="normal">1117</span>
<span class="normal">1118</span>
<span class="normal">1119</span>
<span class="normal">1120</span>
<span class="normal">1121</span>
<span class="normal">1122</span>
<span class="normal">1123</span>
<span class="normal">1124</span>
<span class="normal">1125</span>
<span class="normal">1126</span>
<span class="normal">1127</span>
<span class="normal">1128</span>
<span class="normal">1129</span>
<span class="normal">1130</span>
<span class="normal">1131</span>
<span class="normal">1132</span>
<span class="normal">1133</span>
<span class="normal">1134</span>
<span class="normal">1135</span>
<span class="normal">1136</span>
<span class="normal">1137</span>
<span class="normal">1138</span>
<span class="normal">1139</span>
<span class="normal">1140</span>
<span class="normal">1141</span>
<span class="normal">1142</span>
<span class="normal">1143</span>
<span class="normal">1144</span>
<span class="normal">1145</span>
<span class="normal">1146</span>
<span class="normal">1147</span>
<span class="normal">1148</span>
<span class="normal">1149</span>
<span class="normal">1150</span>
<span class="normal">1151</span>
<span class="normal">1152</span>
<span class="normal">1153</span>
<span class="normal">1154</span>
<span class="normal">1155</span>
<span class="normal">1156</span>
<span class="normal">1157</span>
<span class="normal">1158</span>
<span class="normal">1159</span>
<span class="normal">1160</span>
<span class="normal">1161</span>
<span class="normal">1162</span>
<span class="normal">1163</span>
<span class="normal">1164</span>
<span class="normal">1165</span>
<span class="normal">1166</span>
<span class="normal">1167</span>
<span class="normal">1168</span>
<span class="normal">1169</span></pre></div></td><td class="code"><div><pre><span></span><a id="line-1" name="line-1"></a><span class="cm">/******************************************************************************</span>
<a id="line-2" name="line-2"></a>
<a id="line-3" name="line-3"></a><span class="cm">dgif_lib.c - GIF decoding</span>
<a id="line-4" name="line-4"></a>
<a id="line-5" name="line-5"></a><span class="cm">The functions here and in egif_lib.c are partitioned carefully so that</span>
<a id="line-6" name="line-6"></a><span class="cm">if you only require one of read and write capability, only one of these</span>
<a id="line-7" name="line-7"></a><span class="cm">two modules will be linked.  Preserve this property!</span>
<a id="line-8" name="line-8"></a>
<a id="line-9" name="line-9"></a><span class="cm">*****************************************************************************/</span>
<a id="line-10" name="line-10"></a>
<a id="line-11" name="line-11"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;stdlib.h&gt;</span>
<a id="line-12" name="line-12"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;limits.h&gt;</span>
<a id="line-13" name="line-13"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;stdint.h&gt;</span>
<a id="line-14" name="line-14"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;fcntl.h&gt;</span>
<a id="line-15" name="line-15"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;stdio.h&gt;</span>
<a id="line-16" name="line-16"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;string.h&gt;</span>
<a id="line-17" name="line-17"></a>
<a id="line-18" name="line-18"></a><span class="cp">#ifdef _WIN32</span>
<a id="line-19" name="line-19"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;io.h&gt;</span>
<a id="line-20" name="line-20"></a><span class="cp">#else</span>
<a id="line-21" name="line-21"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;unistd.h&gt;</span>
<a id="line-22" name="line-22"></a><span class="cp">#endif </span><span class="cm">/* _WIN32 */</span>
<a id="line-23" name="line-23"></a>
<a id="line-24" name="line-24"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&quot;gif_lib.h&quot;</span>
<a id="line-25" name="line-25"></a><span class="cp">#include</span><span class="w"> </span><span class="cpf">&quot;gif_lib_private.h&quot;</span>
<a id="line-26" name="line-26"></a>
<a id="line-27" name="line-27"></a><span class="cm">/* compose unsigned little endian value */</span>
<a id="line-28" name="line-28"></a><span class="cp">#define UNSIGNED_LITTLE_ENDIAN(lo, hi)	((lo) | ((hi) &lt;&lt; 8))</span>
<a id="line-29" name="line-29"></a>
<a id="line-30" name="line-30"></a><span class="cm">/* avoid extra function call in case we use fread (TVT) */</span>
<a id="line-31" name="line-31"></a><span class="cp">#define READ(_gif,_buf,_len)                                     \</span>
<a id="line-32" name="line-32"></a><span class="cp">  (((GifFilePrivateType*)_gif-&gt;Private)-&gt;Read ?                   \</span>
<a id="line-33" name="line-33"></a><span class="cp">    ((GifFilePrivateType*)_gif-&gt;Private)-&gt;Read(_gif,_buf,_len) : \</span>
<a id="line-34" name="line-34"></a><span class="cp">    fread(_buf,1,_len,((GifFilePrivateType*)_gif-&gt;Private)-&gt;File))</span>
<a id="line-35" name="line-35"></a>
<a id="line-36" name="line-36"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">DGifGetWord</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifWord</span><span class="w"> </span><span class="o">*</span><span class="n">Word</span><span class="p">);</span>
<a id="line-37" name="line-37"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">DGifSetupDecompress</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-38" name="line-38"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">DGifDecompressLine</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifPixelType</span><span class="w"> </span><span class="o">*</span><span class="n">Line</span><span class="p">,</span>
<a id="line-39" name="line-39"></a><span class="w">                              </span><span class="kt">int</span><span class="w"> </span><span class="n">LineLen</span><span class="p">);</span>
<a id="line-40" name="line-40"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">DGifGetPrefixChar</span><span class="p">(</span><span class="n">GifPrefixType</span><span class="w"> </span><span class="o">*</span><span class="n">Prefix</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">Code</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">ClearCode</span><span class="p">);</span>
<a id="line-41" name="line-41"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">DGifDecompressInput</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">Code</span><span class="p">);</span>
<a id="line-42" name="line-42"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">DGifBufferedInput</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">Buf</span><span class="p">,</span>
<a id="line-43" name="line-43"></a><span class="w">                             </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">NextByte</span><span class="p">);</span>
<a id="line-44" name="line-44"></a>
<a id="line-45" name="line-45"></a><span class="cm">/******************************************************************************</span>
<a id="line-46" name="line-46"></a><span class="cm"> Open a new GIF file for read, given by its name.</span>
<a id="line-47" name="line-47"></a><span class="cm"> Returns dynamically allocated GifFileType pointer which serves as the GIF</span>
<a id="line-48" name="line-48"></a><span class="cm"> info record.</span>
<a id="line-49" name="line-49"></a><span class="cm">******************************************************************************/</span>
<a id="line-50" name="line-50"></a><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span>
<a id="line-51" name="line-51"></a><span class="hll"><span class="nf">DGifOpenFileName</span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">FileName</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">Error</span><span class="p">)</span><span class="error2">&lt;--- The function 'DGifOpenFileName' is never used.</span>
</span><a id="line-52" name="line-52"></a><span class="p">{</span>
<a id="line-53" name="line-53"></a><span class="w">    </span><span class="kt">int</span><span class="w"> </span><span class="n">FileHandle</span><span class="p">;</span>
<a id="line-54" name="line-54"></a><span class="w">    </span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">;</span>
<a id="line-55" name="line-55"></a>
<a id="line-56" name="line-56"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">((</span><span class="n">FileHandle</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">open</span><span class="p">(</span><span class="n">FileName</span><span class="p">,</span><span class="w"> </span><span class="n">O_RDONLY</span><span class="p">))</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mi">-1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-57" name="line-57"></a><span class="w">	</span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Error</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-58" name="line-58"></a><span class="w">	    </span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_OPEN_FAILED</span><span class="p">;</span>
<a id="line-59" name="line-59"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-60" name="line-60"></a><span class="w">    </span><span class="p">}</span>
<a id="line-61" name="line-61"></a>
<a id="line-62" name="line-62"></a><span class="w">    </span><span class="n">GifFile</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">DGifOpenFileHandle</span><span class="p">(</span><span class="n">FileHandle</span><span class="p">,</span><span class="w"> </span><span class="n">Error</span><span class="p">);</span>
<a id="line-63" name="line-63"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GifFile</span><span class="p">;</span>
<a id="line-64" name="line-64"></a><span class="p">}</span>
<a id="line-65" name="line-65"></a>
<a id="line-66" name="line-66"></a><span class="cm">/******************************************************************************</span>
<a id="line-67" name="line-67"></a><span class="cm"> Update a new GIF file, given its file handle.</span>
<a id="line-68" name="line-68"></a><span class="cm"> Returns dynamically allocated GifFileType pointer which serves as the GIF</span>
<a id="line-69" name="line-69"></a><span class="cm"> info record.</span>
<a id="line-70" name="line-70"></a><span class="cm">******************************************************************************/</span>
<a id="line-71" name="line-71"></a><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span>
<a id="line-72" name="line-72"></a><span class="nf">DGifOpenFileHandle</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">FileHandle</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">Error</span><span class="p">)</span>
<a id="line-73" name="line-73"></a><span class="p">{</span>
<a id="line-74" name="line-74"></a><span class="w">    </span><span class="kt">char</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="n">GIF_STAMP_LEN</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
<a id="line-75" name="line-75"></a><span class="w">    </span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">;</span>
<a id="line-76" name="line-76"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="p">;</span>
<a id="line-77" name="line-77"></a><span class="w">    </span><span class="kt">FILE</span><span class="w"> </span><span class="o">*</span><span class="n">f</span><span class="p">;</span>
<a id="line-78" name="line-78"></a>
<a id="line-79" name="line-79"></a><span class="w">    </span><span class="n">GifFile</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="n">GifFileType</span><span class="p">));</span>
<a id="line-80" name="line-80"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-81" name="line-81"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Error</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-82" name="line-82"></a><span class="w">	    </span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_ENOUGH_MEM</span><span class="p">;</span>
<a id="line-83" name="line-83"></a><span class="w">        </span><span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">close</span><span class="p">(</span><span class="n">FileHandle</span><span class="p">);</span>
<a id="line-84" name="line-84"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-85" name="line-85"></a><span class="w">    </span><span class="p">}</span>
<a id="line-86" name="line-86"></a>
<a id="line-87" name="line-87"></a><span class="w">    </span><span class="cm">/*@i1@*/</span><span class="n">memset</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;\0&#39;</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="n">GifFileType</span><span class="p">));</span>
<a id="line-88" name="line-88"></a>
<a id="line-89" name="line-89"></a><span class="w">    </span><span class="cm">/* Belt and suspenders, in case the null pointer isn&#39;t zero */</span>
<a id="line-90" name="line-90"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-91" name="line-91"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-92" name="line-92"></a>
<a id="line-93" name="line-93"></a><span class="w">    </span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="p">));</span>
<a id="line-94" name="line-94"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Private</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-95" name="line-95"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Error</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-96" name="line-96"></a><span class="w">	    </span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_ENOUGH_MEM</span><span class="p">;</span>
<a id="line-97" name="line-97"></a><span class="w">        </span><span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">close</span><span class="p">(</span><span class="n">FileHandle</span><span class="p">);</span>
<a id="line-98" name="line-98"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-99" name="line-99"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-100" name="line-100"></a><span class="w">    </span><span class="p">}</span>
<a id="line-101" name="line-101"></a><span class="cp">#ifdef _WIN32</span>
<a id="line-102" name="line-102"></a><span class="w">    </span><span class="n">_setmode</span><span class="p">(</span><span class="n">FileHandle</span><span class="p">,</span><span class="w"> </span><span class="n">O_BINARY</span><span class="p">);</span><span class="w">    </span><span class="cm">/* Make sure it is in binary mode. */</span>
<a id="line-103" name="line-103"></a><span class="cp">#endif </span><span class="cm">/* _WIN32 */</span>
<a id="line-104" name="line-104"></a>
<a id="line-105" name="line-105"></a><span class="w">    </span><span class="n">f</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">fdopen</span><span class="p">(</span><span class="n">FileHandle</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;rb&quot;</span><span class="p">);</span><span class="w">    </span><span class="cm">/* Make it into a stream: */</span>
<a id="line-106" name="line-106"></a>
<a id="line-107" name="line-107"></a><span class="w">    </span><span class="cm">/*@-mustfreeonly@*/</span>
<a id="line-108" name="line-108"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Private</span><span class="p">;</span>
<a id="line-109" name="line-109"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">FileHandle</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">FileHandle</span><span class="p">;</span>
<a id="line-110" name="line-110"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">File</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">f</span><span class="p">;</span>
<a id="line-111" name="line-111"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">FileState</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">FILE_STATE_READ</span><span class="p">;</span>
<a id="line-112" name="line-112"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Read</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span><span class="w">        </span><span class="cm">/* don&#39;t use alternate input method (TVT) */</span>
<a id="line-113" name="line-113"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">UserData</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span><span class="w">    </span><span class="cm">/* TVT */</span>
<a id="line-114" name="line-114"></a><span class="w">    </span><span class="cm">/*@=mustfreeonly@*/</span>
<a id="line-115" name="line-115"></a>
<a id="line-116" name="line-116"></a><span class="w">    </span><span class="cm">/* Let&#39;s see if this is a GIF file: */</span>
<a id="line-117" name="line-117"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="p">(</span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="n">GIF_STAMP_LEN</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">GIF_STAMP_LEN</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-118" name="line-118"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Error</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-119" name="line-119"></a><span class="w">	    </span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-120" name="line-120"></a><span class="w">        </span><span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">fclose</span><span class="p">(</span><span class="n">f</span><span class="p">);</span>
<a id="line-121" name="line-121"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Private</span><span class="p">);</span>
<a id="line-122" name="line-122"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-123" name="line-123"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-124" name="line-124"></a><span class="w">    </span><span class="p">}</span>
<a id="line-125" name="line-125"></a>
<a id="line-126" name="line-126"></a><span class="w">    </span><span class="cm">/* Check for GIF prefix at start of file */</span>
<a id="line-127" name="line-127"></a><span class="w">    </span><span class="n">Buf</span><span class="p">[</span><span class="n">GIF_STAMP_LEN</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-128" name="line-128"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">strncmp</span><span class="p">(</span><span class="n">GIF_STAMP</span><span class="p">,</span><span class="w"> </span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="n">GIF_VERSION_POS</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-129" name="line-129"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Error</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-130" name="line-130"></a><span class="w">	    </span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_GIF_FILE</span><span class="p">;</span>
<a id="line-131" name="line-131"></a><span class="w">        </span><span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">fclose</span><span class="p">(</span><span class="n">f</span><span class="p">);</span>
<a id="line-132" name="line-132"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Private</span><span class="p">);</span>
<a id="line-133" name="line-133"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-134" name="line-134"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-135" name="line-135"></a><span class="w">    </span><span class="p">}</span>
<a id="line-136" name="line-136"></a>
<a id="line-137" name="line-137"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetScreenDesc</span><span class="p">(</span><span class="n">GifFile</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-138" name="line-138"></a><span class="w">        </span><span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">fclose</span><span class="p">(</span><span class="n">f</span><span class="p">);</span>
<a id="line-139" name="line-139"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Private</span><span class="p">);</span>
<a id="line-140" name="line-140"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-141" name="line-141"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-142" name="line-142"></a><span class="w">    </span><span class="p">}</span>
<a id="line-143" name="line-143"></a>
<a id="line-144" name="line-144"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-145" name="line-145"></a>
<a id="line-146" name="line-146"></a><span class="w">    </span><span class="cm">/* What version of GIF? */</span>
<a id="line-147" name="line-147"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">gif89</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="n">GIF_VERSION_POS</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="sc">&#39;9&#39;</span><span class="p">);</span>
<a id="line-148" name="line-148"></a>
<a id="line-149" name="line-149"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GifFile</span><span class="p">;</span>
<a id="line-150" name="line-150"></a><span class="p">}</span>
<a id="line-151" name="line-151"></a>
<a id="line-152" name="line-152"></a><span class="cm">/******************************************************************************</span>
<a id="line-153" name="line-153"></a><span class="cm"> GifFileType constructor with user supplied input function (TVT)</span>
<a id="line-154" name="line-154"></a><span class="cm">******************************************************************************/</span>
<a id="line-155" name="line-155"></a><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span>
<a id="line-156" name="line-156"></a><span class="nf">DGifOpen</span><span class="p">(</span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="n">userData</span><span class="p">,</span><span class="w"> </span><span class="n">InputFunc</span><span class="w"> </span><span class="n">readFunc</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">Error</span><span class="p">)</span>
<a id="line-157" name="line-157"></a><span class="p">{</span>
<a id="line-158" name="line-158"></a><span class="w">    </span><span class="kt">char</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="n">GIF_STAMP_LEN</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
<a id="line-159" name="line-159"></a><span class="w">    </span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">;</span>
<a id="line-160" name="line-160"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="p">;</span>
<a id="line-161" name="line-161"></a>
<a id="line-162" name="line-162"></a><span class="w">    </span><span class="n">GifFile</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="n">GifFileType</span><span class="p">));</span>
<a id="line-163" name="line-163"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-164" name="line-164"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Error</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-165" name="line-165"></a><span class="w">	    </span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_ENOUGH_MEM</span><span class="p">;</span>
<a id="line-166" name="line-166"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-167" name="line-167"></a><span class="w">    </span><span class="p">}</span>
<a id="line-168" name="line-168"></a>
<a id="line-169" name="line-169"></a><span class="w">    </span><span class="n">memset</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;\0&#39;</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="n">GifFileType</span><span class="p">));</span>
<a id="line-170" name="line-170"></a>
<a id="line-171" name="line-171"></a><span class="w">    </span><span class="cm">/* Belt and suspenders, in case the null pointer isn&#39;t zero */</span>
<a id="line-172" name="line-172"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-173" name="line-173"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-174" name="line-174"></a>
<a id="line-175" name="line-175"></a><span class="w">    </span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="p">));</span>
<a id="line-176" name="line-176"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">Private</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-177" name="line-177"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Error</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-178" name="line-178"></a><span class="w">	    </span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_ENOUGH_MEM</span><span class="p">;</span>
<a id="line-179" name="line-179"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-180" name="line-180"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-181" name="line-181"></a><span class="w">    </span><span class="p">}</span>
<a id="line-182" name="line-182"></a>
<a id="line-183" name="line-183"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Private</span><span class="p">;</span>
<a id="line-184" name="line-184"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">FileHandle</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-185" name="line-185"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">File</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-186" name="line-186"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">FileState</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">FILE_STATE_READ</span><span class="p">;</span>
<a id="line-187" name="line-187"></a>
<a id="line-188" name="line-188"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Read</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">readFunc</span><span class="p">;</span><span class="w">    </span><span class="cm">/* TVT */</span>
<a id="line-189" name="line-189"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">UserData</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">userData</span><span class="p">;</span><span class="w">    </span><span class="cm">/* TVT */</span>
<a id="line-190" name="line-190"></a>
<a id="line-191" name="line-191"></a><span class="w">    </span><span class="cm">/* Lets see if this is a GIF file: */</span>
<a id="line-192" name="line-192"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="p">(</span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="n">GIF_STAMP_LEN</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">GIF_STAMP_LEN</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-193" name="line-193"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Error</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-194" name="line-194"></a><span class="w">	    </span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-195" name="line-195"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Private</span><span class="p">);</span>
<a id="line-196" name="line-196"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-197" name="line-197"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-198" name="line-198"></a><span class="w">    </span><span class="p">}</span>
<a id="line-199" name="line-199"></a>
<a id="line-200" name="line-200"></a><span class="w">    </span><span class="cm">/* Check for GIF prefix at start of file */</span>
<a id="line-201" name="line-201"></a><span class="w">    </span><span class="n">Buf</span><span class="p">[</span><span class="n">GIF_STAMP_LEN</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="sc">&#39;\0&#39;</span><span class="p">;</span>
<a id="line-202" name="line-202"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">strncmp</span><span class="p">(</span><span class="n">GIF_STAMP</span><span class="p">,</span><span class="w"> </span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="n">GIF_VERSION_POS</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-203" name="line-203"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Error</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-204" name="line-204"></a><span class="w">	    </span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_GIF_FILE</span><span class="p">;</span>
<a id="line-205" name="line-205"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Private</span><span class="p">);</span>
<a id="line-206" name="line-206"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-207" name="line-207"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-208" name="line-208"></a><span class="w">    </span><span class="p">}</span>
<a id="line-209" name="line-209"></a>
<a id="line-210" name="line-210"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetScreenDesc</span><span class="p">(</span><span class="n">GifFile</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-211" name="line-211"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">Private</span><span class="p">);</span>
<a id="line-212" name="line-212"></a><span class="w">        </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-213" name="line-213"></a><span class="w">	</span><span class="o">*</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NO_SCRN_DSCR</span><span class="p">;</span>
<a id="line-214" name="line-214"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-215" name="line-215"></a><span class="w">    </span><span class="p">}</span>
<a id="line-216" name="line-216"></a>
<a id="line-217" name="line-217"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-218" name="line-218"></a>
<a id="line-219" name="line-219"></a><span class="w">    </span><span class="cm">/* What version of GIF? */</span>
<a id="line-220" name="line-220"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">gif89</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="n">GIF_VERSION_POS</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="sc">&#39;9&#39;</span><span class="p">);</span>
<a id="line-221" name="line-221"></a>
<a id="line-222" name="line-222"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GifFile</span><span class="p">;</span>
<a id="line-223" name="line-223"></a><span class="p">}</span>
<a id="line-224" name="line-224"></a>
<a id="line-225" name="line-225"></a><span class="cm">/******************************************************************************</span>
<a id="line-226" name="line-226"></a><span class="cm"> This routine should be called before any other DGif calls. Note that</span>
<a id="line-227" name="line-227"></a><span class="cm"> this routine is called automatically from DGif file open routines.</span>
<a id="line-228" name="line-228"></a><span class="cm">******************************************************************************/</span>
<a id="line-229" name="line-229"></a><span class="kt">int</span>
<a id="line-230" name="line-230"></a><span class="nf">DGifGetScreenDesc</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">)</span>
<a id="line-231" name="line-231"></a><span class="p">{</span>
<a id="line-232" name="line-232"></a><span class="w">    </span><span class="kt">int</span><span class="w"> </span><span class="n">BitsPerPixel</span><span class="p">;</span>
<a id="line-233" name="line-233"></a><span class="w">    </span><span class="n">BOOL</span><span class="w"> </span><span class="n">SortFlag</span><span class="p">;</span>
<a id="line-234" name="line-234"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">3</span><span class="p">];</span>
<a id="line-235" name="line-235"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-236" name="line-236"></a>
<a id="line-237" name="line-237"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">IS_READABLE</span><span class="p">(</span><span class="n">Private</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-238" name="line-238"></a><span class="w">        </span><span class="cm">/* This file was NOT open for reading: */</span>
<a id="line-239" name="line-239"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_READABLE</span><span class="p">;</span>
<a id="line-240" name="line-240"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-241" name="line-241"></a><span class="w">    </span><span class="p">}</span>
<a id="line-242" name="line-242"></a>
<a id="line-243" name="line-243"></a><span class="w">    </span><span class="cm">/* Put the screen descriptor into the file: */</span>
<a id="line-244" name="line-244"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetWord</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SWidth</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="w"> </span><span class="o">||</span>
<a id="line-245" name="line-245"></a><span class="w">        </span><span class="n">DGifGetWord</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SHeight</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-246" name="line-246"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-247" name="line-247"></a>
<a id="line-248" name="line-248"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-249" name="line-249"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-250" name="line-250"></a><span class="w">	</span><span class="n">GifFreeMapObject</span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="p">);</span>
<a id="line-251" name="line-251"></a><span class="w">	</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-252" name="line-252"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-253" name="line-253"></a><span class="w">    </span><span class="p">}</span>
<a id="line-254" name="line-254"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorResolution</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(((</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x70</span><span class="p">)</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">&gt;&gt;</span><span class="w"> </span><span class="mi">4</span><span class="p">)</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-255" name="line-255"></a><span class="w">    </span><span class="n">SortFlag</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x08</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-256" name="line-256"></a><span class="w">    </span><span class="n">BitsPerPixel</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x07</span><span class="p">)</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-257" name="line-257"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SBackGroundColor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span>
<a id="line-258" name="line-258"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">AspectByte</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">2</span><span class="p">];</span><span class="w"> </span>
<a id="line-259" name="line-259"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x80</span><span class="p">)</span><span class="w"> </span><span class="p">{</span><span class="w">    </span><span class="cm">/* Do we have global color map? */</span>
<a id="line-260" name="line-260"></a><span class="w">	</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="p">;</span>
<a id="line-261" name="line-261"></a>
<a id="line-262" name="line-262"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GifMakeMapObject</span><span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="o">&lt;&lt;</span><span class="w"> </span><span class="n">BitsPerPixel</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span>
<a id="line-263" name="line-263"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-264" name="line-264"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_ENOUGH_MEM</span><span class="p">;</span>
<a id="line-265" name="line-265"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-266" name="line-266"></a><span class="w">        </span><span class="p">}</span>
<a id="line-267" name="line-267"></a>
<a id="line-268" name="line-268"></a><span class="w">        </span><span class="cm">/* Get the global color map: */</span>
<a id="line-269" name="line-269"></a><span class="w">	</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="o">-&gt;</span><span class="n">SortFlag</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">SortFlag</span><span class="p">;</span>
<a id="line-270" name="line-270"></a><span class="w">        </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="o">-&gt;</span><span class="n">ColorCount</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-271" name="line-271"></a><span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-272" name="line-272"></a><span class="w">                </span><span class="n">GifFreeMapObject</span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="p">);</span>
<a id="line-273" name="line-273"></a><span class="w">                </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-274" name="line-274"></a><span class="w">                </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-275" name="line-275"></a><span class="w">                </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-276" name="line-276"></a><span class="w">            </span><span class="p">}</span>
<a id="line-277" name="line-277"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="o">-&gt;</span><span class="n">Colors</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">Red</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span>
<a id="line-278" name="line-278"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="o">-&gt;</span><span class="n">Colors</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">Green</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span>
<a id="line-279" name="line-279"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="o">-&gt;</span><span class="n">Colors</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">Blue</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">2</span><span class="p">];</span>
<a id="line-280" name="line-280"></a><span class="w">        </span><span class="p">}</span>
<a id="line-281" name="line-281"></a><span class="w">    </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<a id="line-282" name="line-282"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-283" name="line-283"></a><span class="w">    </span><span class="p">}</span>
<a id="line-284" name="line-284"></a>
<a id="line-285" name="line-285"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-286" name="line-286"></a><span class="p">}</span>
<a id="line-287" name="line-287"></a>
<a id="line-288" name="line-288"></a><span class="cm">/******************************************************************************</span>
<a id="line-289" name="line-289"></a><span class="cm"> This routine should be called before any attempt to read an image.</span>
<a id="line-290" name="line-290"></a><span class="cm">******************************************************************************/</span>
<a id="line-291" name="line-291"></a><span class="kt">int</span>
<a id="line-292" name="line-292"></a><span class="nf">DGifGetRecordType</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifRecordType</span><span class="o">*</span><span class="w"> </span><span class="n">Type</span><span class="p">)</span>
<a id="line-293" name="line-293"></a><span class="p">{</span>
<a id="line-294" name="line-294"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="n">Buf</span><span class="p">;</span>
<a id="line-295" name="line-295"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-296" name="line-296"></a>
<a id="line-297" name="line-297"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">IS_READABLE</span><span class="p">(</span><span class="n">Private</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-298" name="line-298"></a><span class="w">        </span><span class="cm">/* This file was NOT open for reading: */</span>
<a id="line-299" name="line-299"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_READABLE</span><span class="p">;</span>
<a id="line-300" name="line-300"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-301" name="line-301"></a><span class="w">    </span><span class="p">}</span>
<a id="line-302" name="line-302"></a>
<a id="line-303" name="line-303"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-304" name="line-304"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-305" name="line-305"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-306" name="line-306"></a><span class="w">    </span><span class="p">}</span>
<a id="line-307" name="line-307"></a>
<a id="line-308" name="line-308"></a><span class="w">    </span><span class="k">switch</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-309" name="line-309"></a><span class="w">      </span><span class="k">case</span><span class="w"> </span><span class="no">DESCRIPTOR_INTRODUCER</span><span class="p">:</span>
<a id="line-310" name="line-310"></a><span class="w">          </span><span class="o">*</span><span class="n">Type</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">IMAGE_DESC_RECORD_TYPE</span><span class="p">;</span>
<a id="line-311" name="line-311"></a><span class="w">          </span><span class="k">break</span><span class="p">;</span>
<a id="line-312" name="line-312"></a><span class="w">      </span><span class="k">case</span><span class="w"> </span><span class="no">EXTENSION_INTRODUCER</span><span class="p">:</span>
<a id="line-313" name="line-313"></a><span class="w">          </span><span class="o">*</span><span class="n">Type</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">EXTENSION_RECORD_TYPE</span><span class="p">;</span>
<a id="line-314" name="line-314"></a><span class="w">          </span><span class="k">break</span><span class="p">;</span>
<a id="line-315" name="line-315"></a><span class="w">      </span><span class="k">case</span><span class="w"> </span><span class="no">TERMINATOR_INTRODUCER</span><span class="p">:</span>
<a id="line-316" name="line-316"></a><span class="w">          </span><span class="o">*</span><span class="n">Type</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">TERMINATE_RECORD_TYPE</span><span class="p">;</span>
<a id="line-317" name="line-317"></a><span class="w">          </span><span class="k">break</span><span class="p">;</span>
<a id="line-318" name="line-318"></a><span class="w">      </span><span class="k">default</span><span class="o">:</span>
<a id="line-319" name="line-319"></a><span class="w">          </span><span class="o">*</span><span class="n">Type</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">UNDEFINED_RECORD_TYPE</span><span class="p">;</span>
<a id="line-320" name="line-320"></a><span class="w">          </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_WRONG_RECORD</span><span class="p">;</span>
<a id="line-321" name="line-321"></a><span class="w">          </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-322" name="line-322"></a><span class="w">    </span><span class="p">}</span>
<a id="line-323" name="line-323"></a>
<a id="line-324" name="line-324"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-325" name="line-325"></a><span class="p">}</span>
<a id="line-326" name="line-326"></a>
<a id="line-327" name="line-327"></a><span class="cm">/******************************************************************************</span>
<a id="line-328" name="line-328"></a><span class="cm"> This routine should be called before any attempt to read an image.</span>
<a id="line-329" name="line-329"></a><span class="cm"> Note it is assumed the Image desc. header has been read.</span>
<a id="line-330" name="line-330"></a><span class="cm">******************************************************************************/</span>
<a id="line-331" name="line-331"></a><span class="kt">int</span>
<a id="line-332" name="line-332"></a><span class="nf">DGifGetImageDesc</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">)</span>
<a id="line-333" name="line-333"></a><span class="p">{</span>
<a id="line-334" name="line-334"></a><span class="w">    </span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">BitsPerPixel</span><span class="p">;</span>
<a id="line-335" name="line-335"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">3</span><span class="p">];</span>
<a id="line-336" name="line-336"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-337" name="line-337"></a><span class="w">    </span><span class="n">SavedImage</span><span class="w"> </span><span class="o">*</span><span class="n">sp</span><span class="p">;</span>
<a id="line-338" name="line-338"></a>
<a id="line-339" name="line-339"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">IS_READABLE</span><span class="p">(</span><span class="n">Private</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-340" name="line-340"></a><span class="w">        </span><span class="cm">/* This file was NOT open for reading: */</span>
<a id="line-341" name="line-341"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_READABLE</span><span class="p">;</span>
<a id="line-342" name="line-342"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-343" name="line-343"></a><span class="w">    </span><span class="p">}</span>
<a id="line-344" name="line-344"></a>
<a id="line-345" name="line-345"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetWord</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">Left</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="w"> </span><span class="o">||</span>
<a id="line-346" name="line-346"></a><span class="w">        </span><span class="n">DGifGetWord</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">Top</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="w"> </span><span class="o">||</span>
<a id="line-347" name="line-347"></a><span class="w">        </span><span class="n">DGifGetWord</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">Width</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="w"> </span><span class="o">||</span>
<a id="line-348" name="line-348"></a><span class="w">        </span><span class="n">DGifGetWord</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">Height</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-349" name="line-349"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-350" name="line-350"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-351" name="line-351"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-352" name="line-352"></a><span class="w">	</span><span class="n">GifFreeMapObject</span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="p">);</span>
<a id="line-353" name="line-353"></a><span class="w">	</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-354" name="line-354"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-355" name="line-355"></a><span class="w">    </span><span class="p">}</span>
<a id="line-356" name="line-356"></a><span class="w">    </span><span class="n">BitsPerPixel</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x07</span><span class="p">)</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-357" name="line-357"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">Interlace</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x40</span><span class="p">)</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="n">TRUE</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">FALSE</span><span class="p">;</span>
<a id="line-358" name="line-358"></a>
<a id="line-359" name="line-359"></a><span class="w">    </span><span class="cm">/* Setup the colormap */</span>
<a id="line-360" name="line-360"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-361" name="line-361"></a><span class="w">        </span><span class="n">GifFreeMapObject</span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="p">);</span>
<a id="line-362" name="line-362"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-363" name="line-363"></a><span class="w">    </span><span class="p">}</span>
<a id="line-364" name="line-364"></a><span class="w">    </span><span class="cm">/* Does this image have local color map? */</span>
<a id="line-365" name="line-365"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x80</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-366" name="line-366"></a><span class="w">	</span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="p">;</span>
<a id="line-367" name="line-367"></a>
<a id="line-368" name="line-368"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GifMakeMapObject</span><span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="o">&lt;&lt;</span><span class="w"> </span><span class="n">BitsPerPixel</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span>
<a id="line-369" name="line-369"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-370" name="line-370"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_ENOUGH_MEM</span><span class="p">;</span>
<a id="line-371" name="line-371"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-372" name="line-372"></a><span class="w">        </span><span class="p">}</span>
<a id="line-373" name="line-373"></a>
<a id="line-374" name="line-374"></a><span class="w">        </span><span class="cm">/* Get the image local color map: */</span>
<a id="line-375" name="line-375"></a><span class="w">        </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="o">-&gt;</span><span class="n">ColorCount</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-376" name="line-376"></a><span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-377" name="line-377"></a><span class="w">                </span><span class="n">GifFreeMapObject</span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="p">);</span>
<a id="line-378" name="line-378"></a><span class="w">                </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-379" name="line-379"></a><span class="w">                </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-380" name="line-380"></a><span class="w">                </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-381" name="line-381"></a><span class="w">            </span><span class="p">}</span>
<a id="line-382" name="line-382"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="o">-&gt;</span><span class="n">Colors</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">Red</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span>
<a id="line-383" name="line-383"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="o">-&gt;</span><span class="n">Colors</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">Green</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span>
<a id="line-384" name="line-384"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="o">-&gt;</span><span class="n">Colors</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">Blue</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">2</span><span class="p">];</span>
<a id="line-385" name="line-385"></a><span class="w">        </span><span class="p">}</span>
<a id="line-386" name="line-386"></a><span class="w">    </span><span class="p">}</span>
<a id="line-387" name="line-387"></a>
<a id="line-388" name="line-388"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-389" name="line-389"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">((</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">SavedImage</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">realloc</span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="p">,</span>
<a id="line-390" name="line-390"></a><span class="w">                                      </span><span class="k">sizeof</span><span class="p">(</span><span class="n">SavedImage</span><span class="p">)</span><span class="w"> </span><span class="o">*</span>
<a id="line-391" name="line-391"></a><span class="w">                                      </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ImageCount</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">)))</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-392" name="line-392"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_ENOUGH_MEM</span><span class="p">;</span>
<a id="line-393" name="line-393"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-394" name="line-394"></a><span class="w">        </span><span class="p">}</span>
<a id="line-395" name="line-395"></a><span class="w">    </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<a id="line-396" name="line-396"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">((</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="w"> </span><span class="o">=</span>
<a id="line-397" name="line-397"></a><span class="w">             </span><span class="p">(</span><span class="n">SavedImage</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="w"> </span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="n">SavedImage</span><span class="p">)))</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-398" name="line-398"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_ENOUGH_MEM</span><span class="p">;</span>
<a id="line-399" name="line-399"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-400" name="line-400"></a><span class="w">        </span><span class="p">}</span>
<a id="line-401" name="line-401"></a><span class="w">    </span><span class="p">}</span>
<a id="line-402" name="line-402"></a>
<a id="line-403" name="line-403"></a><span class="w">    </span><span class="n">sp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="p">[</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ImageCount</span><span class="p">];</span>
<a id="line-404" name="line-404"></a><span class="w">    </span><span class="n">memcpy</span><span class="p">(</span><span class="o">&amp;</span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="n">GifImageDesc</span><span class="p">));</span>
<a id="line-405" name="line-405"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-406" name="line-406"></a><span class="w">        </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">ColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GifMakeMapObject</span><span class="p">(</span>
<a id="line-407" name="line-407"></a><span class="w">                                 </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="o">-&gt;</span><span class="n">ColorCount</span><span class="p">,</span>
<a id="line-408" name="line-408"></a><span class="w">                                 </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="o">-&gt;</span><span class="n">Colors</span><span class="p">);</span>
<a id="line-409" name="line-409"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">ColorMap</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-410" name="line-410"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_ENOUGH_MEM</span><span class="p">;</span>
<a id="line-411" name="line-411"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-412" name="line-412"></a><span class="w">        </span><span class="p">}</span>
<a id="line-413" name="line-413"></a><span class="w">    </span><span class="p">}</span>
<a id="line-414" name="line-414"></a><span class="w">    </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">RasterBits</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-415" name="line-415"></a><span class="w">    </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ExtensionBlockCount</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-416" name="line-416"></a><span class="w">    </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ExtensionBlocks</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">ExtensionBlock</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-417" name="line-417"></a>
<a id="line-418" name="line-418"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ImageCount</span><span class="o">++</span><span class="p">;</span>
<a id="line-419" name="line-419"></a>
<a id="line-420" name="line-420"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">PixelCount</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">long</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">Width</span><span class="w"> </span><span class="o">*</span>
<a id="line-421" name="line-421"></a><span class="w">       </span><span class="p">(</span><span class="kt">long</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">Height</span><span class="p">;</span>
<a id="line-422" name="line-422"></a>
<a id="line-423" name="line-423"></a><span class="w">    </span><span class="cm">/* Reset decompress algorithm parameters. */</span>
<a id="line-424" name="line-424"></a><span class="w">    </span><span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">DGifSetupDecompress</span><span class="p">(</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-425" name="line-425"></a>
<a id="line-426" name="line-426"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-427" name="line-427"></a><span class="p">}</span>
<a id="line-428" name="line-428"></a>
<a id="line-429" name="line-429"></a><span class="cm">/******************************************************************************</span>
<a id="line-430" name="line-430"></a><span class="cm"> Get one full scanned line (Line) of length LineLen from GIF file.</span>
<a id="line-431" name="line-431"></a><span class="cm">******************************************************************************/</span>
<a id="line-432" name="line-432"></a><span class="kt">int</span>
<a id="line-433" name="line-433"></a><span class="nf">DGifGetLine</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifPixelType</span><span class="w"> </span><span class="o">*</span><span class="n">Line</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">LineLen</span><span class="p">)</span>
<a id="line-434" name="line-434"></a><span class="p">{</span>
<a id="line-435" name="line-435"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">Dummy</span><span class="p">;</span>
<a id="line-436" name="line-436"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-437" name="line-437"></a>
<a id="line-438" name="line-438"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">IS_READABLE</span><span class="p">(</span><span class="n">Private</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-439" name="line-439"></a><span class="w">        </span><span class="cm">/* This file was NOT open for reading: */</span>
<a id="line-440" name="line-440"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_READABLE</span><span class="p">;</span>
<a id="line-441" name="line-441"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-442" name="line-442"></a><span class="w">    </span><span class="p">}</span>
<a id="line-443" name="line-443"></a>
<a id="line-444" name="line-444"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">LineLen</span><span class="p">)</span>
<a id="line-445" name="line-445"></a><span class="w">        </span><span class="n">LineLen</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">Width</span><span class="p">;</span>
<a id="line-446" name="line-446"></a>
<a id="line-447" name="line-447"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">((</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">PixelCount</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="n">LineLen</span><span class="p">)</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="mh">0xffff0000UL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-448" name="line-448"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_DATA_TOO_BIG</span><span class="p">;</span>
<a id="line-449" name="line-449"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-450" name="line-450"></a><span class="w">    </span><span class="p">}</span>
<a id="line-451" name="line-451"></a>
<a id="line-452" name="line-452"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifDecompressLine</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">Line</span><span class="p">,</span><span class="w"> </span><span class="n">LineLen</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-453" name="line-453"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">PixelCount</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-454" name="line-454"></a><span class="w">            </span><span class="cm">/* We probably won&#39;t be called any more, so let&#39;s clean up</span>
<a id="line-455" name="line-455"></a><span class="cm">             * everything before we return: need to flush out all the</span>
<a id="line-456" name="line-456"></a><span class="cm">             * rest of image until an empty block (size 0)</span>
<a id="line-457" name="line-457"></a><span class="cm">             * detected. We use GetCodeNext.</span>
<a id="line-458" name="line-458"></a><span class="cm">	     */</span>
<a id="line-459" name="line-459"></a><span class="w">            </span><span class="k">do</span>
<a id="line-460" name="line-460"></a><span class="w">                </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetCodeNext</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">Dummy</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-461" name="line-461"></a><span class="w">                    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-462" name="line-462"></a><span class="w">            </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">Dummy</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">;</span>
<a id="line-463" name="line-463"></a><span class="w">        </span><span class="p">}</span>
<a id="line-464" name="line-464"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-465" name="line-465"></a><span class="w">    </span><span class="p">}</span><span class="w"> </span><span class="k">else</span>
<a id="line-466" name="line-466"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-467" name="line-467"></a><span class="p">}</span>
<a id="line-468" name="line-468"></a>
<a id="line-469" name="line-469"></a><span class="cm">/******************************************************************************</span>
<a id="line-470" name="line-470"></a><span class="cm"> Put one pixel (Pixel) into GIF file.</span>
<a id="line-471" name="line-471"></a><span class="cm">******************************************************************************/</span>
<a id="line-472" name="line-472"></a><span class="kt">int</span>
<a id="line-473" name="line-473"></a><span class="hll"><span class="nf">DGifGetPixel</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifPixelType</span><span class="w"> </span><span class="n">Pixel</span><span class="p">)</span><span class="error2">&lt;--- The function 'DGifGetPixel' is never used.</span>
</span><a id="line-474" name="line-474"></a><span class="p">{</span>
<a id="line-475" name="line-475"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">Dummy</span><span class="p">;</span>
<a id="line-476" name="line-476"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-477" name="line-477"></a>
<a id="line-478" name="line-478"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">IS_READABLE</span><span class="p">(</span><span class="n">Private</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-479" name="line-479"></a><span class="w">        </span><span class="cm">/* This file was NOT open for reading: */</span>
<a id="line-480" name="line-480"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_READABLE</span><span class="p">;</span>
<a id="line-481" name="line-481"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-482" name="line-482"></a><span class="w">    </span><span class="p">}</span>
<a id="line-483" name="line-483"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">--</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">PixelCount</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="mh">0xffff0000UL</span><span class="p">)</span>
<a id="line-484" name="line-484"></a><span class="w">    </span><span class="p">{</span>
<a id="line-485" name="line-485"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_DATA_TOO_BIG</span><span class="p">;</span>
<a id="line-486" name="line-486"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-487" name="line-487"></a><span class="w">    </span><span class="p">}</span>
<a id="line-488" name="line-488"></a>
<a id="line-489" name="line-489"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifDecompressLine</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">Pixel</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-490" name="line-490"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">PixelCount</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-491" name="line-491"></a><span class="w">            </span><span class="cm">/* We probably won&#39;t be called any more, so let&#39;s clean up</span>
<a id="line-492" name="line-492"></a><span class="cm">             * everything before we return: need to flush out all the</span>
<a id="line-493" name="line-493"></a><span class="cm">             * rest of image until an empty block (size 0)</span>
<a id="line-494" name="line-494"></a><span class="cm">             * detected. We use GetCodeNext.</span>
<a id="line-495" name="line-495"></a><span class="cm">	     */</span>
<a id="line-496" name="line-496"></a><span class="w">            </span><span class="k">do</span>
<a id="line-497" name="line-497"></a><span class="w">                </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetCodeNext</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">Dummy</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-498" name="line-498"></a><span class="w">                    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-499" name="line-499"></a><span class="w">            </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">Dummy</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">;</span>
<a id="line-500" name="line-500"></a><span class="w">        </span><span class="p">}</span>
<a id="line-501" name="line-501"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-502" name="line-502"></a><span class="w">    </span><span class="p">}</span><span class="w"> </span><span class="k">else</span>
<a id="line-503" name="line-503"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-504" name="line-504"></a><span class="p">}</span>
<a id="line-505" name="line-505"></a>
<a id="line-506" name="line-506"></a><span class="cm">/******************************************************************************</span>
<a id="line-507" name="line-507"></a><span class="cm"> Get an extension block (see GIF manual) from GIF file. This routine only</span>
<a id="line-508" name="line-508"></a><span class="cm"> returns the first data block, and DGifGetExtensionNext should be called</span>
<a id="line-509" name="line-509"></a><span class="cm"> after this one until NULL extension is returned.</span>
<a id="line-510" name="line-510"></a><span class="cm"> The Extension should NOT be freed by the user (not dynamically allocated).</span>
<a id="line-511" name="line-511"></a><span class="cm"> Note it is assumed the Extension description header has been read.</span>
<a id="line-512" name="line-512"></a><span class="cm">******************************************************************************/</span>
<a id="line-513" name="line-513"></a><span class="kt">int</span>
<a id="line-514" name="line-514"></a><span class="nf">DGifGetExtension</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">ExtCode</span><span class="p">,</span><span class="w"> </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">**</span><span class="n">Extension</span><span class="p">)</span>
<a id="line-515" name="line-515"></a><span class="p">{</span>
<a id="line-516" name="line-516"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="n">Buf</span><span class="p">;</span>
<a id="line-517" name="line-517"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-518" name="line-518"></a>
<a id="line-519" name="line-519"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">IS_READABLE</span><span class="p">(</span><span class="n">Private</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-520" name="line-520"></a><span class="w">        </span><span class="cm">/* This file was NOT open for reading: */</span>
<a id="line-521" name="line-521"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_READABLE</span><span class="p">;</span>
<a id="line-522" name="line-522"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-523" name="line-523"></a><span class="w">    </span><span class="p">}</span>
<a id="line-524" name="line-524"></a>
<a id="line-525" name="line-525"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-526" name="line-526"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-527" name="line-527"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-528" name="line-528"></a><span class="w">    </span><span class="p">}</span>
<a id="line-529" name="line-529"></a><span class="w">    </span><span class="o">*</span><span class="n">ExtCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">;</span>
<a id="line-530" name="line-530"></a>
<a id="line-531" name="line-531"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">DGifGetExtensionNext</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">Extension</span><span class="p">);</span>
<a id="line-532" name="line-532"></a><span class="p">}</span>
<a id="line-533" name="line-533"></a>
<a id="line-534" name="line-534"></a><span class="cm">/******************************************************************************</span>
<a id="line-535" name="line-535"></a><span class="cm"> Get a following extension block (see GIF manual) from GIF file. This</span>
<a id="line-536" name="line-536"></a><span class="cm"> routine should be called until NULL Extension is returned.</span>
<a id="line-537" name="line-537"></a><span class="cm"> The Extension should NOT be freed by the user (not dynamically allocated).</span>
<a id="line-538" name="line-538"></a><span class="cm">******************************************************************************/</span>
<a id="line-539" name="line-539"></a><span class="kt">int</span>
<a id="line-540" name="line-540"></a><span class="nf">DGifGetExtensionNext</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">**</span><span class="w"> </span><span class="n">Extension</span><span class="p">)</span>
<a id="line-541" name="line-541"></a><span class="p">{</span>
<a id="line-542" name="line-542"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="n">Buf</span><span class="p">;</span>
<a id="line-543" name="line-543"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-544" name="line-544"></a>
<a id="line-545" name="line-545"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-546" name="line-546"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-547" name="line-547"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-548" name="line-548"></a><span class="w">    </span><span class="p">}</span>
<a id="line-549" name="line-549"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-550" name="line-550"></a><span class="w">        </span><span class="o">*</span><span class="n">Extension</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Buf</span><span class="p">;</span><span class="w">    </span><span class="cm">/* Use private unused buffer. */</span>
<a id="line-551" name="line-551"></a><span class="w">        </span><span class="p">(</span><span class="o">*</span><span class="n">Extension</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">;</span><span class="w">  </span><span class="cm">/* Pascal strings notation (pos. 0 is len.). */</span>
<a id="line-552" name="line-552"></a><span class="w">	</span><span class="cm">/* coverity[tainted_data] */</span>
<a id="line-553" name="line-553"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="p">((</span><span class="o">*</span><span class="n">Extension</span><span class="p">)[</span><span class="mi">1</span><span class="p">]),</span><span class="w"> </span><span class="n">Buf</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">Buf</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-554" name="line-554"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-555" name="line-555"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-556" name="line-556"></a><span class="w">        </span><span class="p">}</span>
<a id="line-557" name="line-557"></a><span class="w">    </span><span class="p">}</span><span class="w"> </span><span class="k">else</span>
<a id="line-558" name="line-558"></a><span class="w">        </span><span class="o">*</span><span class="n">Extension</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-559" name="line-559"></a>
<a id="line-560" name="line-560"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-561" name="line-561"></a><span class="p">}</span>
<a id="line-562" name="line-562"></a>
<a id="line-563" name="line-563"></a><span class="cm">/******************************************************************************</span>
<a id="line-564" name="line-564"></a><span class="cm"> Extract a Graphics Control Block from raw extension data</span>
<a id="line-565" name="line-565"></a><span class="cm">******************************************************************************/</span>
<a id="line-566" name="line-566"></a>
<a id="line-567" name="line-567"></a><span class="kt">int</span><span class="w"> </span><span class="nf">DGifExtensionToGCB</span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="kt">size_t</span><span class="w"> </span><span class="n">GifExtensionLength</span><span class="p">,</span>
<a id="line-568" name="line-568"></a><span class="w">		       </span><span class="k">const</span><span class="w"> </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">GifExtension</span><span class="p">,</span>
<a id="line-569" name="line-569"></a><span class="w">		       </span><span class="n">GraphicsControlBlock</span><span class="w"> </span><span class="o">*</span><span class="n">GCB</span><span class="p">)</span>
<a id="line-570" name="line-570"></a><span class="p">{</span>
<a id="line-571" name="line-571"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifExtensionLength</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">4</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-572" name="line-572"></a><span class="w">	</span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-573" name="line-573"></a><span class="w">    </span><span class="p">}</span>
<a id="line-574" name="line-574"></a>
<a id="line-575" name="line-575"></a><span class="w">    </span><span class="n">GCB</span><span class="o">-&gt;</span><span class="n">DisposalMode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifExtension</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&gt;&gt;</span><span class="w"> </span><span class="mi">2</span><span class="p">)</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x07</span><span class="p">;</span>
<a id="line-576" name="line-576"></a><span class="w">    </span><span class="n">GCB</span><span class="o">-&gt;</span><span class="n">UserInputFlag</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifExtension</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x02</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-577" name="line-577"></a><span class="w">    </span><span class="n">GCB</span><span class="o">-&gt;</span><span class="n">DelayTime</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">UNSIGNED_LITTLE_ENDIAN</span><span class="p">(</span><span class="n">GifExtension</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span><span class="w"> </span><span class="n">GifExtension</span><span class="p">[</span><span class="mi">2</span><span class="p">]);</span>
<a id="line-578" name="line-578"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifExtension</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="mh">0x01</span><span class="p">)</span>
<a id="line-579" name="line-579"></a><span class="w">	</span><span class="n">GCB</span><span class="o">-&gt;</span><span class="n">TransparentColor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="n">GifExtension</span><span class="p">[</span><span class="mi">3</span><span class="p">];</span>
<a id="line-580" name="line-580"></a><span class="w">    </span><span class="k">else</span>
<a id="line-581" name="line-581"></a><span class="w">	</span><span class="n">GCB</span><span class="o">-&gt;</span><span class="n">TransparentColor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">NO_TRANSPARENT_COLOR</span><span class="p">;</span>
<a id="line-582" name="line-582"></a>
<a id="line-583" name="line-583"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-584" name="line-584"></a><span class="p">}</span>
<a id="line-585" name="line-585"></a>
<a id="line-586" name="line-586"></a><span class="cm">/******************************************************************************</span>
<a id="line-587" name="line-587"></a><span class="cm"> Extract the Graphics Control Block for a saved image, if it exists.</span>
<a id="line-588" name="line-588"></a><span class="cm">******************************************************************************/</span>
<a id="line-589" name="line-589"></a>
<a id="line-590" name="line-590"></a><span class="kt">int</span><span class="w"> </span><span class="nf">DGifSavedExtensionToGCB</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span>
<a id="line-591" name="line-591"></a><span class="w">			    </span><span class="kt">int</span><span class="w"> </span><span class="n">ImageIndex</span><span class="p">,</span><span class="w"> </span><span class="n">GraphicsControlBlock</span><span class="w"> </span><span class="o">*</span><span class="n">GCB</span><span class="p">)</span>
<a id="line-592" name="line-592"></a><span class="p">{</span>
<a id="line-593" name="line-593"></a><span class="w">    </span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="p">;</span>
<a id="line-594" name="line-594"></a>
<a id="line-595" name="line-595"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">ImageIndex</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">ImageIndex</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ImageCount</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span>
<a id="line-596" name="line-596"></a><span class="w">	</span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-597" name="line-597"></a>
<a id="line-598" name="line-598"></a><span class="w">    </span><span class="n">GCB</span><span class="o">-&gt;</span><span class="n">DisposalMode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">DISPOSAL_UNSPECIFIED</span><span class="p">;</span>
<a id="line-599" name="line-599"></a><span class="w">    </span><span class="n">GCB</span><span class="o">-&gt;</span><span class="n">UserInputFlag</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">FALSE</span><span class="p">;</span>
<a id="line-600" name="line-600"></a><span class="w">    </span><span class="n">GCB</span><span class="o">-&gt;</span><span class="n">DelayTime</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-601" name="line-601"></a><span class="w">    </span><span class="n">GCB</span><span class="o">-&gt;</span><span class="n">TransparentColor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">NO_TRANSPARENT_COLOR</span><span class="p">;</span>
<a id="line-602" name="line-602"></a>
<a id="line-603" name="line-603"></a><span class="w">    </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="p">[</span><span class="n">ImageIndex</span><span class="p">].</span><span class="n">ExtensionBlockCount</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-604" name="line-604"></a><span class="w">	</span><span class="n">ExtensionBlock</span><span class="w"> </span><span class="o">*</span><span class="n">ep</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="p">[</span><span class="n">ImageIndex</span><span class="p">].</span><span class="n">ExtensionBlocks</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
<a id="line-605" name="line-605"></a><span class="w">	</span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">ep</span><span class="o">-&gt;</span><span class="n">Function</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GRAPHICS_EXT_FUNC_CODE</span><span class="p">)</span>
<a id="line-606" name="line-606"></a><span class="w">	    </span><span class="k">return</span><span class="w"> </span><span class="n">DGifExtensionToGCB</span><span class="p">(</span><span class="n">ep</span><span class="o">-&gt;</span><span class="n">ByteCount</span><span class="p">,</span><span class="w"> </span><span class="n">ep</span><span class="o">-&gt;</span><span class="n">Bytes</span><span class="p">,</span><span class="w"> </span><span class="n">GCB</span><span class="p">);</span>
<a id="line-607" name="line-607"></a><span class="w">    </span><span class="p">}</span>
<a id="line-608" name="line-608"></a>
<a id="line-609" name="line-609"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-610" name="line-610"></a><span class="p">}</span>
<a id="line-611" name="line-611"></a>
<a id="line-612" name="line-612"></a><span class="cm">/******************************************************************************</span>
<a id="line-613" name="line-613"></a><span class="cm"> This routine should be called last, to close the GIF file.</span>
<a id="line-614" name="line-614"></a><span class="cm">******************************************************************************/</span>
<a id="line-615" name="line-615"></a><span class="kt">int</span>
<a id="line-616" name="line-616"></a><span class="nf">DGifCloseFile</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">)</span>
<a id="line-617" name="line-617"></a><span class="p">{</span>
<a id="line-618" name="line-618"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="p">;</span>
<a id="line-619" name="line-619"></a>
<a id="line-620" name="line-620"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-621" name="line-621"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-622" name="line-622"></a>
<a id="line-623" name="line-623"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-624" name="line-624"></a><span class="w">        </span><span class="n">GifFreeMapObject</span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="p">);</span>
<a id="line-625" name="line-625"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Image</span><span class="p">.</span><span class="n">ColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-626" name="line-626"></a><span class="w">    </span><span class="p">}</span>
<a id="line-627" name="line-627"></a>
<a id="line-628" name="line-628"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-629" name="line-629"></a><span class="w">        </span><span class="n">GifFreeMapObject</span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="p">);</span>
<a id="line-630" name="line-630"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SColorMap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-631" name="line-631"></a><span class="w">    </span><span class="p">}</span>
<a id="line-632" name="line-632"></a>
<a id="line-633" name="line-633"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-634" name="line-634"></a><span class="w">        </span><span class="n">GifFreeSavedImages</span><span class="p">(</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-635" name="line-635"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-636" name="line-636"></a><span class="w">    </span><span class="p">}</span>
<a id="line-637" name="line-637"></a>
<a id="line-638" name="line-638"></a><span class="w">    </span><span class="n">GifFreeExtensions</span><span class="p">(</span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlockCount</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlocks</span><span class="p">);</span>
<a id="line-639" name="line-639"></a>
<a id="line-640" name="line-640"></a><span class="w">    </span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-641" name="line-641"></a>
<a id="line-642" name="line-642"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">IS_READABLE</span><span class="p">(</span><span class="n">Private</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-643" name="line-643"></a><span class="w">        </span><span class="cm">/* This file was NOT open for reading: */</span>
<a id="line-644" name="line-644"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_READABLE</span><span class="p">;</span>
<a id="line-645" name="line-645"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-646" name="line-646"></a><span class="w">    </span><span class="p">}</span>
<a id="line-647" name="line-647"></a>
<a id="line-648" name="line-648"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">File</span><span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span><span class="p">(</span><span class="n">fclose</span><span class="p">(</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">File</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">0</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-649" name="line-649"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_CLOSE_FAILED</span><span class="p">;</span>
<a id="line-650" name="line-650"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-651" name="line-651"></a><span class="w">    </span><span class="p">}</span>
<a id="line-652" name="line-652"></a>
<a id="line-653" name="line-653"></a><span class="w">    </span><span class="n">free</span><span class="p">((</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">);</span>
<a id="line-654" name="line-654"></a>
<a id="line-655" name="line-655"></a><span class="w">    </span><span class="cm">/* </span>
<a id="line-656" name="line-656"></a><span class="cm">     * Without the #ifndef, we get spurious warnings because Coverity mistakenly</span>
<a id="line-657" name="line-657"></a><span class="cm">     * thinks the GIF structure is freed on an error return. </span>
<a id="line-658" name="line-658"></a><span class="cm">     */</span>
<a id="line-659" name="line-659"></a><span class="cp">#ifndef __COVERITY__</span>
<a id="line-660" name="line-660"></a><span class="w">    </span><span class="n">free</span><span class="p">(</span><span class="n">GifFile</span><span class="p">);</span>
<a id="line-661" name="line-661"></a><span class="cp">#endif </span><span class="cm">/* __COVERITY__ */</span>
<a id="line-662" name="line-662"></a>
<a id="line-663" name="line-663"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-664" name="line-664"></a><span class="p">}</span>
<a id="line-665" name="line-665"></a>
<a id="line-666" name="line-666"></a><span class="cm">/******************************************************************************</span>
<a id="line-667" name="line-667"></a><span class="cm"> Get 2 bytes (word) from the given file:</span>
<a id="line-668" name="line-668"></a><span class="cm">******************************************************************************/</span>
<a id="line-669" name="line-669"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span>
<a id="line-670" name="line-670"></a><span class="nf">DGifGetWord</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifWord</span><span class="w"> </span><span class="o">*</span><span class="n">Word</span><span class="p">)</span>
<a id="line-671" name="line-671"></a><span class="p">{</span>
<a id="line-672" name="line-672"></a><span class="w">    </span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="n">c</span><span class="p">[</span><span class="mi">2</span><span class="p">];</span>
<a id="line-673" name="line-673"></a>
<a id="line-674" name="line-674"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">c</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">2</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-675" name="line-675"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-676" name="line-676"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-677" name="line-677"></a><span class="w">    </span><span class="p">}</span>
<a id="line-678" name="line-678"></a>
<a id="line-679" name="line-679"></a><span class="w">    </span><span class="o">*</span><span class="n">Word</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifWord</span><span class="p">)</span><span class="n">UNSIGNED_LITTLE_ENDIAN</span><span class="p">(</span><span class="n">c</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span><span class="w"> </span><span class="n">c</span><span class="p">[</span><span class="mi">1</span><span class="p">]);</span>
<a id="line-680" name="line-680"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-681" name="line-681"></a><span class="p">}</span>
<a id="line-682" name="line-682"></a>
<a id="line-683" name="line-683"></a><span class="cm">/******************************************************************************</span>
<a id="line-684" name="line-684"></a><span class="cm"> Get the image code in compressed form.  This routine can be called if the</span>
<a id="line-685" name="line-685"></a><span class="cm"> information needed to be piped out as is. Obviously this is much faster</span>
<a id="line-686" name="line-686"></a><span class="cm"> than decoding and encoding again. This routine should be followed by calls</span>
<a id="line-687" name="line-687"></a><span class="cm"> to DGifGetCodeNext, until NULL block is returned.</span>
<a id="line-688" name="line-688"></a><span class="cm"> The block should NOT be freed by the user (not dynamically allocated).</span>
<a id="line-689" name="line-689"></a><span class="cm">******************************************************************************/</span>
<a id="line-690" name="line-690"></a><span class="kt">int</span>
<a id="line-691" name="line-691"></a><span class="hll"><span class="nf">DGifGetCode</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">CodeSize</span><span class="p">,</span><span class="w"> </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">**</span><span class="n">CodeBlock</span><span class="p">)</span><span class="error2">&lt;--- The function 'DGifGetCode' is never used.</span>
</span><a id="line-692" name="line-692"></a><span class="p">{</span>
<a id="line-693" name="line-693"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-694" name="line-694"></a>
<a id="line-695" name="line-695"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">IS_READABLE</span><span class="p">(</span><span class="n">Private</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-696" name="line-696"></a><span class="w">        </span><span class="cm">/* This file was NOT open for reading: */</span>
<a id="line-697" name="line-697"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_READABLE</span><span class="p">;</span>
<a id="line-698" name="line-698"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-699" name="line-699"></a><span class="w">    </span><span class="p">}</span>
<a id="line-700" name="line-700"></a>
<a id="line-701" name="line-701"></a><span class="w">    </span><span class="o">*</span><span class="n">CodeSize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">BitsPerPixel</span><span class="p">;</span>
<a id="line-702" name="line-702"></a>
<a id="line-703" name="line-703"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">DGifGetCodeNext</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">CodeBlock</span><span class="p">);</span>
<a id="line-704" name="line-704"></a><span class="p">}</span>
<a id="line-705" name="line-705"></a>
<a id="line-706" name="line-706"></a><span class="cm">/******************************************************************************</span>
<a id="line-707" name="line-707"></a><span class="cm"> Continue to get the image code in compressed form. This routine should be</span>
<a id="line-708" name="line-708"></a><span class="cm"> called until NULL block is returned.</span>
<a id="line-709" name="line-709"></a><span class="cm"> The block should NOT be freed by the user (not dynamically allocated).</span>
<a id="line-710" name="line-710"></a><span class="cm">******************************************************************************/</span>
<a id="line-711" name="line-711"></a><span class="kt">int</span>
<a id="line-712" name="line-712"></a><span class="nf">DGifGetCodeNext</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">**</span><span class="n">CodeBlock</span><span class="p">)</span>
<a id="line-713" name="line-713"></a><span class="p">{</span>
<a id="line-714" name="line-714"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="n">Buf</span><span class="p">;</span>
<a id="line-715" name="line-715"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-716" name="line-716"></a>
<a id="line-717" name="line-717"></a><span class="w">    </span><span class="cm">/* coverity[tainted_data_argument] */</span>
<a id="line-718" name="line-718"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-719" name="line-719"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-720" name="line-720"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-721" name="line-721"></a><span class="w">    </span><span class="p">}</span>
<a id="line-722" name="line-722"></a>
<a id="line-723" name="line-723"></a><span class="w">    </span><span class="cm">/* coverity[lower_bounds] */</span>
<a id="line-724" name="line-724"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-725" name="line-725"></a><span class="w">        </span><span class="o">*</span><span class="n">CodeBlock</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Buf</span><span class="p">;</span><span class="w">    </span><span class="cm">/* Use private unused buffer. */</span>
<a id="line-726" name="line-726"></a><span class="w">        </span><span class="p">(</span><span class="o">*</span><span class="n">CodeBlock</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">;</span><span class="w">  </span><span class="cm">/* Pascal strings notation (pos. 0 is len.). */</span>
<a id="line-727" name="line-727"></a><span class="w">	</span><span class="cm">/* coverity[tainted_data] */</span>
<a id="line-728" name="line-728"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="p">((</span><span class="o">*</span><span class="n">CodeBlock</span><span class="p">)[</span><span class="mi">1</span><span class="p">]),</span><span class="w"> </span><span class="n">Buf</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">Buf</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-729" name="line-729"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-730" name="line-730"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-731" name="line-731"></a><span class="w">        </span><span class="p">}</span>
<a id="line-732" name="line-732"></a><span class="w">    </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<a id="line-733" name="line-733"></a><span class="w">        </span><span class="o">*</span><span class="n">CodeBlock</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-734" name="line-734"></a><span class="w">        </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w">    </span><span class="cm">/* Make sure the buffer is empty! */</span>
<a id="line-735" name="line-735"></a><span class="w">        </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">PixelCount</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w">    </span><span class="cm">/* And local info. indicate image read. */</span>
<a id="line-736" name="line-736"></a><span class="w">    </span><span class="p">}</span>
<a id="line-737" name="line-737"></a>
<a id="line-738" name="line-738"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-739" name="line-739"></a><span class="p">}</span>
<a id="line-740" name="line-740"></a>
<a id="line-741" name="line-741"></a><span class="cm">/******************************************************************************</span>
<a id="line-742" name="line-742"></a><span class="cm"> Setup the LZ decompression for this image:</span>
<a id="line-743" name="line-743"></a><span class="cm">******************************************************************************/</span>
<a id="line-744" name="line-744"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span>
<a id="line-745" name="line-745"></a><span class="nf">DGifSetupDecompress</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">)</span>
<a id="line-746" name="line-746"></a><span class="p">{</span>
<a id="line-747" name="line-747"></a><span class="w">    </span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">BitsPerPixel</span><span class="p">;</span>
<a id="line-748" name="line-748"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="n">CodeSize</span><span class="p">;</span>
<a id="line-749" name="line-749"></a><span class="w">    </span><span class="n">GifPrefixType</span><span class="w"> </span><span class="o">*</span><span class="n">Prefix</span><span class="p">;</span>
<a id="line-750" name="line-750"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-751" name="line-751"></a>
<a id="line-752" name="line-752"></a><span class="w">    </span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">CodeSize</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">);</span><span class="w">    </span><span class="cm">/* Read Code size from file. */</span>
<a id="line-753" name="line-753"></a><span class="w">    </span><span class="n">BitsPerPixel</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">CodeSize</span><span class="p">;</span>
<a id="line-754" name="line-754"></a>
<a id="line-755" name="line-755"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w">    </span><span class="cm">/* Input Buffer empty. */</span>
<a id="line-756" name="line-756"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">BitsPerPixel</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">BitsPerPixel</span><span class="p">;</span>
<a id="line-757" name="line-757"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">ClearCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="o">&lt;&lt;</span><span class="w"> </span><span class="n">BitsPerPixel</span><span class="p">);</span>
<a id="line-758" name="line-758"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">EOFCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">ClearCode</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-759" name="line-759"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">EOFCode</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-760" name="line-760"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">BitsPerPixel</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w">    </span><span class="cm">/* Number of bits per code. */</span>
<a id="line-761" name="line-761"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">MaxCode1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">&lt;&lt;</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="p">;</span><span class="w">    </span><span class="cm">/* Max. code + 1. */</span>
<a id="line-762" name="line-762"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">StackPtr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w">    </span><span class="cm">/* No pixels on the pixel stack. */</span>
<a id="line-763" name="line-763"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">LastCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">NO_SUCH_CODE</span><span class="p">;</span>
<a id="line-764" name="line-764"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">CrntShiftState</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w">    </span><span class="cm">/* No information in CrntShiftDWord. */</span>
<a id="line-765" name="line-765"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">CrntShiftDWord</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-766" name="line-766"></a>
<a id="line-767" name="line-767"></a><span class="w">    </span><span class="n">Prefix</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Prefix</span><span class="p">;</span>
<a id="line-768" name="line-768"></a><span class="w">    </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;=</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span>
<a id="line-769" name="line-769"></a><span class="w">        </span><span class="n">Prefix</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">NO_SUCH_CODE</span><span class="p">;</span>
<a id="line-770" name="line-770"></a>
<a id="line-771" name="line-771"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-772" name="line-772"></a><span class="p">}</span>
<a id="line-773" name="line-773"></a>
<a id="line-774" name="line-774"></a><span class="cm">/******************************************************************************</span>
<a id="line-775" name="line-775"></a><span class="cm"> The LZ decompression routine:</span>
<a id="line-776" name="line-776"></a><span class="cm"> This version decompress the given GIF file into Line of length LineLen.</span>
<a id="line-777" name="line-777"></a><span class="cm"> This routine can be called few times (one per scan line, for example), in</span>
<a id="line-778" name="line-778"></a><span class="cm"> order the complete the whole image.</span>
<a id="line-779" name="line-779"></a><span class="cm">******************************************************************************/</span>
<a id="line-780" name="line-780"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span>
<a id="line-781" name="line-781"></a><span class="nf">DGifDecompressLine</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifPixelType</span><span class="w"> </span><span class="o">*</span><span class="n">Line</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">LineLen</span><span class="p">)</span>
<a id="line-782" name="line-782"></a><span class="p">{</span>
<a id="line-783" name="line-783"></a><span class="w">    </span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-784" name="line-784"></a><span class="w">    </span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="p">,</span><span class="w"> </span><span class="n">CrntCode</span><span class="p">,</span><span class="w"> </span><span class="n">EOFCode</span><span class="p">,</span><span class="w"> </span><span class="n">ClearCode</span><span class="p">,</span><span class="w"> </span><span class="n">CrntPrefix</span><span class="p">,</span><span class="w"> </span><span class="n">LastCode</span><span class="p">,</span><span class="w"> </span><span class="n">StackPtr</span><span class="p">;</span>
<a id="line-785" name="line-785"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">Stack</span><span class="p">,</span><span class="w"> </span><span class="o">*</span><span class="n">Suffix</span><span class="p">;</span>
<a id="line-786" name="line-786"></a><span class="w">    </span><span class="n">GifPrefixType</span><span class="w"> </span><span class="o">*</span><span class="n">Prefix</span><span class="p">;</span>
<a id="line-787" name="line-787"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-788" name="line-788"></a>
<a id="line-789" name="line-789"></a><span class="w">    </span><span class="n">StackPtr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">StackPtr</span><span class="p">;</span>
<a id="line-790" name="line-790"></a><span class="w">    </span><span class="n">Prefix</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Prefix</span><span class="p">;</span>
<a id="line-791" name="line-791"></a><span class="w">    </span><span class="n">Suffix</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Suffix</span><span class="p">;</span>
<a id="line-792" name="line-792"></a><span class="w">    </span><span class="n">Stack</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Stack</span><span class="p">;</span>
<a id="line-793" name="line-793"></a><span class="w">    </span><span class="n">EOFCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">EOFCode</span><span class="p">;</span>
<a id="line-794" name="line-794"></a><span class="w">    </span><span class="n">ClearCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">ClearCode</span><span class="p">;</span>
<a id="line-795" name="line-795"></a><span class="w">    </span><span class="n">LastCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">LastCode</span><span class="p">;</span>
<a id="line-796" name="line-796"></a>
<a id="line-797" name="line-797"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">StackPtr</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-798" name="line-798"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-799" name="line-799"></a><span class="w">    </span><span class="p">}</span>
<a id="line-800" name="line-800"></a>
<a id="line-801" name="line-801"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">StackPtr</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-802" name="line-802"></a><span class="w">        </span><span class="cm">/* Let pop the stack off before continueing to read the GIF file: */</span>
<a id="line-803" name="line-803"></a><span class="w">        </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">StackPtr</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">LineLen</span><span class="p">)</span>
<a id="line-804" name="line-804"></a><span class="w">            </span><span class="n">Line</span><span class="p">[</span><span class="n">i</span><span class="o">++</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Stack</span><span class="p">[</span><span class="o">--</span><span class="n">StackPtr</span><span class="p">];</span>
<a id="line-805" name="line-805"></a><span class="w">    </span><span class="p">}</span>
<a id="line-806" name="line-806"></a>
<a id="line-807" name="line-807"></a><span class="w">    </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">LineLen</span><span class="p">)</span><span class="w"> </span><span class="p">{</span><span class="w">    </span><span class="cm">/* Decode LineLen items. */</span>
<a id="line-808" name="line-808"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifDecompressInput</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">CrntCode</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-809" name="line-809"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-810" name="line-810"></a>
<a id="line-811" name="line-811"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">CrntCode</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">EOFCode</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-812" name="line-812"></a><span class="w">            </span><span class="cm">/* Note however that usually we will not be here as we will stop</span>
<a id="line-813" name="line-813"></a><span class="cm">             * decoding as soon as we got all the pixel, or EOF code will</span>
<a id="line-814" name="line-814"></a><span class="cm">             * not be read at all, and DGifGetLine/Pixel clean everything.  */</span>
<a id="line-815" name="line-815"></a><span class="w">	    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_EOF_TOO_SOON</span><span class="p">;</span>
<a id="line-816" name="line-816"></a><span class="w">	    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-817" name="line-817"></a><span class="w">        </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">CrntCode</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">ClearCode</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-818" name="line-818"></a><span class="w">            </span><span class="cm">/* We need to start over again: */</span>
<a id="line-819" name="line-819"></a><span class="w">            </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">&lt;=</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span>
<a id="line-820" name="line-820"></a><span class="w">                </span><span class="n">Prefix</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">NO_SUCH_CODE</span><span class="p">;</span>
<a id="line-821" name="line-821"></a><span class="w">            </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">EOFCode</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-822" name="line-822"></a><span class="w">            </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">BitsPerPixel</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-823" name="line-823"></a><span class="w">            </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">MaxCode1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">&lt;&lt;</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="p">;</span>
<a id="line-824" name="line-824"></a><span class="w">            </span><span class="n">LastCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">LastCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">NO_SUCH_CODE</span><span class="p">;</span>
<a id="line-825" name="line-825"></a><span class="w">        </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<a id="line-826" name="line-826"></a><span class="w">            </span><span class="cm">/* Its regular code - if in pixel range simply add it to output</span>
<a id="line-827" name="line-827"></a><span class="cm">             * stream, otherwise trace to codes linked list until the prefix</span>
<a id="line-828" name="line-828"></a><span class="cm">             * is in pixel range: */</span>
<a id="line-829" name="line-829"></a><span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">CrntCode</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">ClearCode</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-830" name="line-830"></a><span class="w">                </span><span class="cm">/* This is simple - its pixel scalar, so add it to output: */</span>
<a id="line-831" name="line-831"></a><span class="w">                </span><span class="n">Line</span><span class="p">[</span><span class="n">i</span><span class="o">++</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">CrntCode</span><span class="p">;</span>
<a id="line-832" name="line-832"></a><span class="w">            </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<a id="line-833" name="line-833"></a><span class="w">                </span><span class="cm">/* Its a code to needed to be traced: trace the linked list</span>
<a id="line-834" name="line-834"></a><span class="cm">                 * until the prefix is a pixel, while pushing the suffix</span>
<a id="line-835" name="line-835"></a><span class="cm">                 * pixels on our stack. If we done, pop the stack in reverse</span>
<a id="line-836" name="line-836"></a><span class="cm">                 * (thats what stack is good for!) order to output.  */</span>
<a id="line-837" name="line-837"></a><span class="w">                </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Prefix</span><span class="p">[</span><span class="n">CrntCode</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">NO_SUCH_CODE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-838" name="line-838"></a><span class="w">                    </span><span class="cm">/* Only allowed if CrntCode is exactly the running code:</span>
<a id="line-839" name="line-839"></a><span class="cm">                     * In that case CrntCode = XXXCode, CrntCode or the</span>
<a id="line-840" name="line-840"></a><span class="cm">                     * prefix code is last code and the suffix char is</span>
<a id="line-841" name="line-841"></a><span class="cm">                     * exactly the prefix of last code! */</span>
<a id="line-842" name="line-842"></a><span class="w">                    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">CrntCode</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">2</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-843" name="line-843"></a><span class="w">                        </span><span class="n">CrntPrefix</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">LastCode</span><span class="p">;</span>
<a id="line-844" name="line-844"></a><span class="w">                        </span><span class="n">Suffix</span><span class="p">[</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">2</span><span class="p">]</span><span class="w"> </span><span class="o">=</span>
<a id="line-845" name="line-845"></a><span class="w">                           </span><span class="n">Stack</span><span class="p">[</span><span class="n">StackPtr</span><span class="o">++</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">DGifGetPrefixChar</span><span class="p">(</span><span class="n">Prefix</span><span class="p">,</span>
<a id="line-846" name="line-846"></a><span class="w">                                                                 </span><span class="n">LastCode</span><span class="p">,</span>
<a id="line-847" name="line-847"></a><span class="w">                                                                 </span><span class="n">ClearCode</span><span class="p">);</span>
<a id="line-848" name="line-848"></a><span class="w">                    </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<a id="line-849" name="line-849"></a><span class="w">                        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_IMAGE_DEFECT</span><span class="p">;</span>
<a id="line-850" name="line-850"></a><span class="w">                        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-851" name="line-851"></a><span class="w">                    </span><span class="p">}</span>
<a id="line-852" name="line-852"></a><span class="w">                </span><span class="p">}</span><span class="w"> </span><span class="k">else</span>
<a id="line-853" name="line-853"></a><span class="w">                    </span><span class="n">CrntPrefix</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">CrntCode</span><span class="p">;</span>
<a id="line-854" name="line-854"></a>
<a id="line-855" name="line-855"></a><span class="w">                </span><span class="cm">/* Now (if image is O.K.) we should not get a NO_SUCH_CODE</span>
<a id="line-856" name="line-856"></a><span class="cm">                 * during the trace. As we might loop forever, in case of</span>
<a id="line-857" name="line-857"></a><span class="cm">                 * defective image, we use StackPtr as loop counter and stop</span>
<a id="line-858" name="line-858"></a><span class="cm">                 * before overflowing Stack[]. */</span>
<a id="line-859" name="line-859"></a><span class="w">                </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">StackPtr</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="w"> </span><span class="o">&amp;&amp;</span>
<a id="line-860" name="line-860"></a><span class="w">                       </span><span class="n">CrntPrefix</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="n">ClearCode</span><span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span><span class="n">CrntPrefix</span><span class="w"> </span><span class="o">&lt;=</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-861" name="line-861"></a><span class="w">                    </span><span class="n">Stack</span><span class="p">[</span><span class="n">StackPtr</span><span class="o">++</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Suffix</span><span class="p">[</span><span class="n">CrntPrefix</span><span class="p">];</span>
<a id="line-862" name="line-862"></a><span class="w">                    </span><span class="n">CrntPrefix</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Prefix</span><span class="p">[</span><span class="n">CrntPrefix</span><span class="p">];</span>
<a id="line-863" name="line-863"></a><span class="w">                </span><span class="p">}</span>
<a id="line-864" name="line-864"></a><span class="w">                </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">StackPtr</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">CrntPrefix</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-865" name="line-865"></a><span class="w">                    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_IMAGE_DEFECT</span><span class="p">;</span>
<a id="line-866" name="line-866"></a><span class="w">                    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-867" name="line-867"></a><span class="w">                </span><span class="p">}</span>
<a id="line-868" name="line-868"></a><span class="w">                </span><span class="cm">/* Push the last character on stack: */</span>
<a id="line-869" name="line-869"></a><span class="w">                </span><span class="n">Stack</span><span class="p">[</span><span class="n">StackPtr</span><span class="o">++</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">CrntPrefix</span><span class="p">;</span>
<a id="line-870" name="line-870"></a>
<a id="line-871" name="line-871"></a><span class="w">                </span><span class="cm">/* Now lets pop all the stack into output: */</span>
<a id="line-872" name="line-872"></a><span class="w">                </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">StackPtr</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">LineLen</span><span class="p">)</span>
<a id="line-873" name="line-873"></a><span class="w">                    </span><span class="n">Line</span><span class="p">[</span><span class="n">i</span><span class="o">++</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Stack</span><span class="p">[</span><span class="o">--</span><span class="n">StackPtr</span><span class="p">];</span>
<a id="line-874" name="line-874"></a><span class="w">            </span><span class="p">}</span>
<a id="line-875" name="line-875"></a><span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">LastCode</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">NO_SUCH_CODE</span><span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span><span class="n">Prefix</span><span class="p">[</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">2</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">NO_SUCH_CODE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-876" name="line-876"></a><span class="w">                </span><span class="n">Prefix</span><span class="p">[</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">2</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">LastCode</span><span class="p">;</span>
<a id="line-877" name="line-877"></a>
<a id="line-878" name="line-878"></a><span class="w">                </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">CrntCode</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">2</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-879" name="line-879"></a><span class="w">                    </span><span class="cm">/* Only allowed if CrntCode is exactly the running code:</span>
<a id="line-880" name="line-880"></a><span class="cm">                     * In that case CrntCode = XXXCode, CrntCode or the</span>
<a id="line-881" name="line-881"></a><span class="cm">                     * prefix code is last code and the suffix char is</span>
<a id="line-882" name="line-882"></a><span class="cm">                     * exactly the prefix of last code! */</span>
<a id="line-883" name="line-883"></a><span class="w">                    </span><span class="n">Suffix</span><span class="p">[</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">2</span><span class="p">]</span><span class="w"> </span><span class="o">=</span>
<a id="line-884" name="line-884"></a><span class="w">                       </span><span class="n">DGifGetPrefixChar</span><span class="p">(</span><span class="n">Prefix</span><span class="p">,</span><span class="w"> </span><span class="n">LastCode</span><span class="p">,</span><span class="w"> </span><span class="n">ClearCode</span><span class="p">);</span>
<a id="line-885" name="line-885"></a><span class="w">                </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<a id="line-886" name="line-886"></a><span class="w">                    </span><span class="n">Suffix</span><span class="p">[</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">2</span><span class="p">]</span><span class="w"> </span><span class="o">=</span>
<a id="line-887" name="line-887"></a><span class="w">                       </span><span class="n">DGifGetPrefixChar</span><span class="p">(</span><span class="n">Prefix</span><span class="p">,</span><span class="w"> </span><span class="n">CrntCode</span><span class="p">,</span><span class="w"> </span><span class="n">ClearCode</span><span class="p">);</span>
<a id="line-888" name="line-888"></a><span class="w">                </span><span class="p">}</span>
<a id="line-889" name="line-889"></a><span class="w">            </span><span class="p">}</span>
<a id="line-890" name="line-890"></a><span class="w">            </span><span class="n">LastCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">CrntCode</span><span class="p">;</span>
<a id="line-891" name="line-891"></a><span class="w">        </span><span class="p">}</span>
<a id="line-892" name="line-892"></a><span class="w">    </span><span class="p">}</span>
<a id="line-893" name="line-893"></a>
<a id="line-894" name="line-894"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">LastCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">LastCode</span><span class="p">;</span>
<a id="line-895" name="line-895"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">StackPtr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">StackPtr</span><span class="p">;</span>
<a id="line-896" name="line-896"></a>
<a id="line-897" name="line-897"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-898" name="line-898"></a><span class="p">}</span>
<a id="line-899" name="line-899"></a>
<a id="line-900" name="line-900"></a><span class="cm">/******************************************************************************</span>
<a id="line-901" name="line-901"></a><span class="cm"> Routine to trace the Prefixes linked list until we get a prefix which is</span>
<a id="line-902" name="line-902"></a><span class="cm"> not code, but a pixel value (less than ClearCode). Returns that pixel value.</span>
<a id="line-903" name="line-903"></a><span class="cm"> If image is defective, we might loop here forever, so we limit the loops to</span>
<a id="line-904" name="line-904"></a><span class="cm"> the maximum possible if image O.k. - LZ_MAX_CODE times.</span>
<a id="line-905" name="line-905"></a><span class="cm">******************************************************************************/</span>
<a id="line-906" name="line-906"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span>
<a id="line-907" name="line-907"></a><span class="hll"><span class="nf">DGifGetPrefixChar</span><span class="p">(</span><span class="n">GifPrefixType</span><span class="w"> </span><span class="o">*</span><span class="n">Prefix</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">Code</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">ClearCode</span><span class="p">)</span><span class="error2">&lt;--- Parameter 'Prefix' can be declared as pointer to const</span>
</span><a id="line-908" name="line-908"></a><span class="p">{</span>
<a id="line-909" name="line-909"></a><span class="w">    </span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-910" name="line-910"></a>
<a id="line-911" name="line-911"></a><span class="w">    </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">Code</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="n">ClearCode</span><span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="w"> </span><span class="o">&lt;=</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-912" name="line-912"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Code</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-913" name="line-913"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">NO_SUCH_CODE</span><span class="p">;</span>
<a id="line-914" name="line-914"></a><span class="w">        </span><span class="p">}</span>
<a id="line-915" name="line-915"></a><span class="w">        </span><span class="n">Code</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Prefix</span><span class="p">[</span><span class="n">Code</span><span class="p">];</span>
<a id="line-916" name="line-916"></a><span class="w">    </span><span class="p">}</span>
<a id="line-917" name="line-917"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">Code</span><span class="p">;</span>
<a id="line-918" name="line-918"></a><span class="p">}</span>
<a id="line-919" name="line-919"></a>
<a id="line-920" name="line-920"></a><span class="cm">/******************************************************************************</span>
<a id="line-921" name="line-921"></a><span class="cm"> Interface for accessing the LZ codes directly. Set Code to the real code</span>
<a id="line-922" name="line-922"></a><span class="cm"> (12bits), or to -1 if EOF code is returned.</span>
<a id="line-923" name="line-923"></a><span class="cm">******************************************************************************/</span>
<a id="line-924" name="line-924"></a><span class="kt">int</span>
<a id="line-925" name="line-925"></a><span class="hll"><span class="nf">DGifGetLZCodes</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">Code</span><span class="p">)</span><span class="error2">&lt;--- The function 'DGifGetLZCodes' is never used.</span>
</span><a id="line-926" name="line-926"></a><span class="p">{</span>
<a id="line-927" name="line-927"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">CodeBlock</span><span class="p">;</span>
<a id="line-928" name="line-928"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-929" name="line-929"></a>
<a id="line-930" name="line-930"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">IS_READABLE</span><span class="p">(</span><span class="n">Private</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-931" name="line-931"></a><span class="w">        </span><span class="cm">/* This file was NOT open for reading: */</span>
<a id="line-932" name="line-932"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_NOT_READABLE</span><span class="p">;</span>
<a id="line-933" name="line-933"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-934" name="line-934"></a><span class="w">    </span><span class="p">}</span>
<a id="line-935" name="line-935"></a>
<a id="line-936" name="line-936"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifDecompressInput</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">Code</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-937" name="line-937"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-938" name="line-938"></a>
<a id="line-939" name="line-939"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">*</span><span class="n">Code</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">EOFCode</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-940" name="line-940"></a><span class="w">        </span><span class="cm">/* Skip rest of codes (hopefully only NULL terminating block): */</span>
<a id="line-941" name="line-941"></a><span class="w">        </span><span class="k">do</span><span class="w"> </span><span class="p">{</span>
<a id="line-942" name="line-942"></a><span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetCodeNext</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">CodeBlock</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-943" name="line-943"></a><span class="w">                </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-944" name="line-944"></a><span class="w">        </span><span class="p">}</span><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">CodeBlock</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">;</span>
<a id="line-945" name="line-945"></a>
<a id="line-946" name="line-946"></a><span class="w">        </span><span class="o">*</span><span class="n">Code</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">-1</span><span class="p">;</span>
<a id="line-947" name="line-947"></a><span class="w">    </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="o">*</span><span class="n">Code</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">ClearCode</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-948" name="line-948"></a><span class="w">        </span><span class="cm">/* We need to start over again: */</span>
<a id="line-949" name="line-949"></a><span class="w">        </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">EOFCode</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-950" name="line-950"></a><span class="w">        </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">BitsPerPixel</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-951" name="line-951"></a><span class="w">        </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">MaxCode1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">&lt;&lt;</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="p">;</span>
<a id="line-952" name="line-952"></a><span class="w">    </span><span class="p">}</span>
<a id="line-953" name="line-953"></a>
<a id="line-954" name="line-954"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-955" name="line-955"></a><span class="p">}</span>
<a id="line-956" name="line-956"></a>
<a id="line-957" name="line-957"></a><span class="cm">/******************************************************************************</span>
<a id="line-958" name="line-958"></a><span class="cm"> The LZ decompression input routine:</span>
<a id="line-959" name="line-959"></a><span class="cm"> This routine is responsable for the decompression of the bit stream from</span>
<a id="line-960" name="line-960"></a><span class="cm"> 8 bits (bytes) packets, into the real codes.</span>
<a id="line-961" name="line-961"></a><span class="cm"> Returns GIF_OK if read successfully.</span>
<a id="line-962" name="line-962"></a><span class="cm">******************************************************************************/</span>
<a id="line-963" name="line-963"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span>
<a id="line-964" name="line-964"></a><span class="nf">DGifDecompressInput</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">Code</span><span class="p">)</span>
<a id="line-965" name="line-965"></a><span class="p">{</span>
<a id="line-966" name="line-966"></a><span class="w">    </span><span class="k">static</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">short</span><span class="w"> </span><span class="n">CodeMasks</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span>
<a id="line-967" name="line-967"></a><span class="w">	</span><span class="mh">0x0000</span><span class="p">,</span><span class="w"> </span><span class="mh">0x0001</span><span class="p">,</span><span class="w"> </span><span class="mh">0x0003</span><span class="p">,</span><span class="w"> </span><span class="mh">0x0007</span><span class="p">,</span>
<a id="line-968" name="line-968"></a><span class="w">	</span><span class="mh">0x000f</span><span class="p">,</span><span class="w"> </span><span class="mh">0x001f</span><span class="p">,</span><span class="w"> </span><span class="mh">0x003f</span><span class="p">,</span><span class="w"> </span><span class="mh">0x007f</span><span class="p">,</span>
<a id="line-969" name="line-969"></a><span class="w">	</span><span class="mh">0x00ff</span><span class="p">,</span><span class="w"> </span><span class="mh">0x01ff</span><span class="p">,</span><span class="w"> </span><span class="mh">0x03ff</span><span class="p">,</span><span class="w"> </span><span class="mh">0x07ff</span><span class="p">,</span>
<a id="line-970" name="line-970"></a><span class="w">	</span><span class="mh">0x0fff</span>
<a id="line-971" name="line-971"></a><span class="w">    </span><span class="p">};</span>
<a id="line-972" name="line-972"></a>
<a id="line-973" name="line-973"></a><span class="w">    </span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="n">Private</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GifFilePrivateType</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Private</span><span class="p">;</span>
<a id="line-974" name="line-974"></a>
<a id="line-975" name="line-975"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="n">NextByte</span><span class="p">;</span>
<a id="line-976" name="line-976"></a>
<a id="line-977" name="line-977"></a><span class="w">    </span><span class="cm">/* The image can&#39;t contain more than LZ_BITS per code. */</span>
<a id="line-978" name="line-978"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="n">LZ_BITS</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-979" name="line-979"></a><span class="w">        </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_IMAGE_DEFECT</span><span class="p">;</span>
<a id="line-980" name="line-980"></a><span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-981" name="line-981"></a><span class="w">    </span><span class="p">}</span>
<a id="line-982" name="line-982"></a><span class="w">    </span>
<a id="line-983" name="line-983"></a><span class="w">    </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">CrntShiftState</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-984" name="line-984"></a><span class="w">        </span><span class="cm">/* Needs to get more bytes from input stream for next code: */</span>
<a id="line-985" name="line-985"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifBufferedInput</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">NextByte</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-986" name="line-986"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-987" name="line-987"></a><span class="w">        </span><span class="p">}</span>
<a id="line-988" name="line-988"></a><span class="w">        </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">CrntShiftDWord</span><span class="w"> </span><span class="o">|=</span>
<a id="line-989" name="line-989"></a><span class="w">	    </span><span class="p">((</span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">long</span><span class="p">)</span><span class="n">NextByte</span><span class="p">)</span><span class="w"> </span><span class="o">&lt;&lt;</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">CrntShiftState</span><span class="p">;</span>
<a id="line-990" name="line-990"></a><span class="w">        </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">CrntShiftState</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">8</span><span class="p">;</span>
<a id="line-991" name="line-991"></a><span class="w">    </span><span class="p">}</span>
<a id="line-992" name="line-992"></a><span class="w">    </span><span class="o">*</span><span class="n">Code</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">CrntShiftDWord</span><span class="w"> </span><span class="o">&amp;</span><span class="w"> </span><span class="n">CodeMasks</span><span class="p">[</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="p">];</span>
<a id="line-993" name="line-993"></a>
<a id="line-994" name="line-994"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">CrntShiftDWord</span><span class="w"> </span><span class="o">&gt;&gt;=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="p">;</span>
<a id="line-995" name="line-995"></a><span class="w">    </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">CrntShiftState</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="p">;</span>
<a id="line-996" name="line-996"></a>
<a id="line-997" name="line-997"></a><span class="w">    </span><span class="cm">/* If code cannot fit into RunningBits bits, must raise its size. Note</span>
<a id="line-998" name="line-998"></a><span class="cm">     * however that codes above 4095 are used for special signaling.</span>
<a id="line-999" name="line-999"></a><span class="cm">     * If we&#39;re using LZ_BITS bits already and we&#39;re at the max code, just</span>
<a id="line-1000" name="line-1000"></a><span class="cm">     * keep using the table as it is, don&#39;t increment Private-&gt;RunningCode.</span>
<a id="line-1001" name="line-1001"></a><span class="cm">     */</span>
<a id="line-1002" name="line-1002"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">LZ_MAX_CODE</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="o">&amp;&amp;</span>
<a id="line-1003" name="line-1003"></a><span class="w">	</span><span class="o">++</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningCode</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">MaxCode1</span><span class="w"> </span><span class="o">&amp;&amp;</span>
<a id="line-1004" name="line-1004"></a><span class="w">	</span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">LZ_BITS</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-1005" name="line-1005"></a><span class="w">        </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">MaxCode1</span><span class="w"> </span><span class="o">&lt;&lt;=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
<a id="line-1006" name="line-1006"></a><span class="w">        </span><span class="n">Private</span><span class="o">-&gt;</span><span class="n">RunningBits</span><span class="o">++</span><span class="p">;</span>
<a id="line-1007" name="line-1007"></a><span class="w">    </span><span class="p">}</span>
<a id="line-1008" name="line-1008"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-1009" name="line-1009"></a><span class="p">}</span>
<a id="line-1010" name="line-1010"></a>
<a id="line-1011" name="line-1011"></a><span class="cm">/******************************************************************************</span>
<a id="line-1012" name="line-1012"></a><span class="cm"> This routines read one GIF data block at a time and buffers it internally</span>
<a id="line-1013" name="line-1013"></a><span class="cm"> so that the decompression routine could access it.</span>
<a id="line-1014" name="line-1014"></a><span class="cm"> The routine returns the next byte from its internal buffer (or read next</span>
<a id="line-1015" name="line-1015"></a><span class="cm"> block in if buffer empty) and returns GIF_OK if succesful.</span>
<a id="line-1016" name="line-1016"></a><span class="cm">******************************************************************************/</span>
<a id="line-1017" name="line-1017"></a><span class="k">static</span><span class="w"> </span><span class="kt">int</span>
<a id="line-1018" name="line-1018"></a><span class="nf">DGifBufferedInput</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">NextByte</span><span class="p">)</span>
<a id="line-1019" name="line-1019"></a><span class="p">{</span>
<a id="line-1020" name="line-1020"></a><span class="w">    </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-1021" name="line-1021"></a><span class="w">        </span><span class="cm">/* Needs to read the next buffer - this one is empty: */</span>
<a id="line-1022" name="line-1022"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="n">Buf</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-1023" name="line-1023"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-1024" name="line-1024"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-1025" name="line-1025"></a><span class="w">        </span><span class="p">}</span>
<a id="line-1026" name="line-1026"></a><span class="w">        </span><span class="cm">/* There shouldn&#39;t be any empty data blocks here as the LZW spec</span>
<a id="line-1027" name="line-1027"></a><span class="cm">         * says the LZW termination code should come first.  Therefore we</span>
<a id="line-1028" name="line-1028"></a><span class="cm">         * shouldn&#39;t be inside this routine at that point.</span>
<a id="line-1029" name="line-1029"></a><span class="cm">         */</span>
<a id="line-1030" name="line-1030"></a><span class="hll"><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span><span class="error2">&lt;--- First condition</span>
</span><a id="line-1031" name="line-1031"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_IMAGE_DEFECT</span><span class="p">;</span>
<a id="line-1032" name="line-1032"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-1033" name="line-1033"></a><span class="w">        </span><span class="p">}</span>
<a id="line-1034" name="line-1034"></a><span class="w">        </span><span class="cm">/* There shouldn&#39;t be any empty data blocks here as the LZW spec</span>
<a id="line-1035" name="line-1035"></a><span class="cm">         * says the LZW termination code should come first.  Therefore we</span>
<a id="line-1036" name="line-1036"></a><span class="cm">         * shouldn&#39;t be inside this routine at that point.</span>
<a id="line-1037" name="line-1037"></a><span class="cm">         */</span>
<a id="line-1038" name="line-1038"></a><span class="hll"><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span><span class="error2">&lt;--- Second condition</span>
</span><a id="line-1039" name="line-1039"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_IMAGE_DEFECT</span><span class="p">;</span>
<a id="line-1040" name="line-1040"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-1041" name="line-1041"></a><span class="w">        </span><span class="p">}</span>
<a id="line-1042" name="line-1042"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">READ</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">Buf</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span><span class="w"> </span><span class="p">{</span>
<a id="line-1043" name="line-1043"></a><span class="w">            </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">Error</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">D_GIF_ERR_READ_FAILED</span><span class="p">;</span>
<a id="line-1044" name="line-1044"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-1045" name="line-1045"></a><span class="w">        </span><span class="p">}</span>
<a id="line-1046" name="line-1046"></a><span class="w">        </span><span class="o">*</span><span class="n">NextByte</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span>
<a id="line-1047" name="line-1047"></a><span class="w">        </span><span class="n">Buf</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span><span class="w">    </span><span class="cm">/* We use now the second place as last char read! */</span>
<a id="line-1048" name="line-1048"></a><span class="w">        </span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">--</span><span class="p">;</span>
<a id="line-1049" name="line-1049"></a><span class="w">    </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<a id="line-1050" name="line-1050"></a><span class="w">        </span><span class="o">*</span><span class="n">NextByte</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Buf</span><span class="p">[</span><span class="n">Buf</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">++</span><span class="p">];</span>
<a id="line-1051" name="line-1051"></a><span class="w">        </span><span class="n">Buf</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">--</span><span class="p">;</span>
<a id="line-1052" name="line-1052"></a><span class="w">    </span><span class="p">}</span>
<a id="line-1053" name="line-1053"></a>
<a id="line-1054" name="line-1054"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_OK</span><span class="p">;</span>
<a id="line-1055" name="line-1055"></a><span class="p">}</span>
<a id="line-1056" name="line-1056"></a>
<a id="line-1057" name="line-1057"></a><span class="cm">/******************************************************************************</span>
<a id="line-1058" name="line-1058"></a><span class="cm"> This routine reads an entire GIF into core, hanging all its state info off</span>
<a id="line-1059" name="line-1059"></a><span class="cm"> the GifFileType pointer.  Call DGifOpenFileName() or DGifOpenFileHandle()</span>
<a id="line-1060" name="line-1060"></a><span class="cm"> first to initialize I/O.  Its inverse is EGifSpew().</span>
<a id="line-1061" name="line-1061"></a><span class="cm">*******************************************************************************/</span>
<a id="line-1062" name="line-1062"></a><span class="kt">int</span>
<a id="line-1063" name="line-1063"></a><span class="nf">DGifSlurp</span><span class="p">(</span><span class="n">GifFileType</span><span class="w"> </span><span class="o">*</span><span class="n">GifFile</span><span class="p">)</span>
<a id="line-1064" name="line-1064"></a><span class="p">{</span>
<a id="line-1065" name="line-1065"></a><span class="w">    </span><span class="kt">size_t</span><span class="w"> </span><span class="n">ImageSize</span><span class="p">;</span>
<a id="line-1066" name="line-1066"></a><span class="w">    </span><span class="n">GifRecordType</span><span class="w"> </span><span class="n">RecordType</span><span class="p">;</span>
<a id="line-1067" name="line-1067"></a><span class="w">    </span><span class="n">SavedImage</span><span class="w"> </span><span class="o">*</span><span class="n">sp</span><span class="p">;</span>
<a id="line-1068" name="line-1068"></a><span class="w">    </span><span class="n">GifByteType</span><span class="w"> </span><span class="o">*</span><span class="n">ExtData</span><span class="p">;</span>
<a id="line-1069" name="line-1069"></a><span class="w">    </span><span class="kt">int</span><span class="w"> </span><span class="n">ExtFunction</span><span class="p">;</span>
<a id="line-1070" name="line-1070"></a>
<a id="line-1071" name="line-1071"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlocks</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-1072" name="line-1072"></a><span class="w">    </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlockCount</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-1073" name="line-1073"></a>
<a id="line-1074" name="line-1074"></a><span class="w">    </span><span class="k">do</span><span class="w"> </span><span class="p">{</span>
<a id="line-1075" name="line-1075"></a><span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetRecordType</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">RecordType</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-1076" name="line-1076"></a><span class="w">            </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">GIF_ERROR</span><span class="p">);</span>
<a id="line-1077" name="line-1077"></a>
<a id="line-1078" name="line-1078"></a><span class="w">        </span><span class="k">switch</span><span class="w"> </span><span class="p">(</span><span class="n">RecordType</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-1079" name="line-1079"></a><span class="w">          </span><span class="k">case</span><span class="w"> </span><span class="no">IMAGE_DESC_RECORD_TYPE</span><span class="p">:</span>
<a id="line-1080" name="line-1080"></a><span class="w">              </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetImageDesc</span><span class="p">(</span><span class="n">GifFile</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-1081" name="line-1081"></a><span class="w">                  </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">GIF_ERROR</span><span class="p">);</span>
<a id="line-1082" name="line-1082"></a>
<a id="line-1083" name="line-1083"></a><span class="w">              </span><span class="n">sp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">SavedImages</span><span class="p">[</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ImageCount</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
<a id="line-1084" name="line-1084"></a><span class="w">              </span><span class="cm">/* Allocate memory for the image */</span>
<a id="line-1085" name="line-1085"></a><span class="w">              </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Width</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Height</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&amp;&amp;</span>
<a id="line-1086" name="line-1086"></a><span class="w">                      </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Width</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="p">(</span><span class="n">INT_MAX</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Height</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<a id="line-1087" name="line-1087"></a><span class="w">                  </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-1088" name="line-1088"></a><span class="w">              </span><span class="p">}</span>
<a id="line-1089" name="line-1089"></a><span class="w">              </span><span class="n">ImageSize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Width</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Height</span><span class="p">;</span>
<a id="line-1090" name="line-1090"></a>
<a id="line-1091" name="line-1091"></a><span class="w">              </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">ImageSize</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="p">(</span><span class="n">SIZE_MAX</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="n">GifPixelType</span><span class="p">)))</span><span class="w"> </span><span class="p">{</span>
<a id="line-1092" name="line-1092"></a><span class="w">                  </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-1093" name="line-1093"></a><span class="w">              </span><span class="p">}</span>
<a id="line-1094" name="line-1094"></a><span class="w">              </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">RasterBits</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="n">ImageSize</span><span class="w"> </span><span class="o">*</span>
<a id="line-1095" name="line-1095"></a><span class="w">                      </span><span class="k">sizeof</span><span class="p">(</span><span class="n">GifPixelType</span><span class="p">));</span>
<a id="line-1096" name="line-1096"></a>
<a id="line-1097" name="line-1097"></a><span class="w">              </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">RasterBits</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-1098" name="line-1098"></a><span class="w">                  </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-1099" name="line-1099"></a><span class="w">              </span><span class="p">}</span>
<a id="line-1100" name="line-1100"></a>
<a id="line-1101" name="line-1101"></a><span class="w">	      </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Interlace</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-1102" name="line-1102"></a><span class="w">		  </span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">j</span><span class="p">;</span>
<a id="line-1103" name="line-1103"></a><span class="w">		   </span><span class="cm">/* </span>
<a id="line-1104" name="line-1104"></a><span class="cm">		    * The way an interlaced image should be read - </span>
<a id="line-1105" name="line-1105"></a><span class="cm">		    * offsets and jumps...</span>
<a id="line-1106" name="line-1106"></a><span class="cm">		    */</span>
<a id="line-1107" name="line-1107"></a><span class="hll"><span class="w">		  </span><span class="kt">int</span><span class="w"> </span><span class="n">InterlacedOffset</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="p">};</span><span class="error2">&lt;--- Variable 'InterlacedOffset' can be declared as const array</span>
</span><a id="line-1108" name="line-1108"></a><span class="hll"><span class="w">		  </span><span class="kt">int</span><span class="w"> </span><span class="n">InterlacedJumps</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="p">};</span><span class="error2">&lt;--- Variable 'InterlacedJumps' can be declared as const array</span>
</span><a id="line-1109" name="line-1109"></a><span class="w">		  </span><span class="cm">/* Need to perform 4 passes on the image */</span>
<a id="line-1110" name="line-1110"></a><span class="w">		  </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="mi">4</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span>
<a id="line-1111" name="line-1111"></a><span class="w">		      </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">InterlacedOffset</span><span class="p">[</span><span class="n">i</span><span class="p">];</span><span class="w"> </span>
<a id="line-1112" name="line-1112"></a><span class="w">			   </span><span class="n">j</span><span class="w"> </span><span class="o">&lt;</span><span class="w"> </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Height</span><span class="p">;</span>
<a id="line-1113" name="line-1113"></a><span class="w">			   </span><span class="n">j</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">InterlacedJumps</span><span class="p">[</span><span class="n">i</span><span class="p">])</span><span class="w"> </span><span class="p">{</span>
<a id="line-1114" name="line-1114"></a><span class="w">			  </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetLine</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span>
<a id="line-1115" name="line-1115"></a><span class="w">					  </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">RasterBits</span><span class="o">+</span><span class="n">j</span><span class="o">*</span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Width</span><span class="p">,</span><span class="w"> </span>
<a id="line-1116" name="line-1116"></a><span class="w">					  </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ImageDesc</span><span class="p">.</span><span class="n">Width</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-1117" name="line-1117"></a><span class="w">			      </span><span class="k">return</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">;</span>
<a id="line-1118" name="line-1118"></a><span class="w">		      </span><span class="p">}</span>
<a id="line-1119" name="line-1119"></a><span class="w">	      </span><span class="p">}</span>
<a id="line-1120" name="line-1120"></a><span class="w">	      </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
<a id="line-1121" name="line-1121"></a><span class="w">		  </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetLine</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">RasterBits</span><span class="p">,</span><span class="n">ImageSize</span><span class="p">)</span><span class="o">==</span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-1122" name="line-1122"></a><span class="w">		      </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">GIF_ERROR</span><span class="p">);</span>
<a id="line-1123" name="line-1123"></a><span class="w">	      </span><span class="p">}</span>
<a id="line-1124" name="line-1124"></a>
<a id="line-1125" name="line-1125"></a><span class="w">              </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlocks</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-1126" name="line-1126"></a><span class="w">                  </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ExtensionBlocks</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlocks</span><span class="p">;</span>
<a id="line-1127" name="line-1127"></a><span class="w">                  </span><span class="n">sp</span><span class="o">-&gt;</span><span class="n">ExtensionBlockCount</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlockCount</span><span class="p">;</span>
<a id="line-1128" name="line-1128"></a>
<a id="line-1129" name="line-1129"></a><span class="w">                  </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlocks</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">;</span>
<a id="line-1130" name="line-1130"></a><span class="w">                  </span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlockCount</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<a id="line-1131" name="line-1131"></a><span class="w">              </span><span class="p">}</span>
<a id="line-1132" name="line-1132"></a><span class="w">              </span><span class="k">break</span><span class="p">;</span>
<a id="line-1133" name="line-1133"></a>
<a id="line-1134" name="line-1134"></a><span class="w">          </span><span class="k">case</span><span class="w"> </span><span class="no">EXTENSION_RECORD_TYPE</span><span class="p">:</span>
<a id="line-1135" name="line-1135"></a><span class="w">              </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetExtension</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="o">&amp;</span><span class="n">ExtFunction</span><span class="p">,</span><span class="o">&amp;</span><span class="n">ExtData</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-1136" name="line-1136"></a><span class="w">                  </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">GIF_ERROR</span><span class="p">);</span>
<a id="line-1137" name="line-1137"></a><span class="w">	      </span><span class="cm">/* Create an extension block with our data */</span>
<a id="line-1138" name="line-1138"></a><span class="w">              </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">ExtData</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-1139" name="line-1139"></a><span class="w">		  </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifAddExtensionBlock</span><span class="p">(</span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlockCount</span><span class="p">,</span>
<a id="line-1140" name="line-1140"></a><span class="w">					   </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlocks</span><span class="p">,</span><span class="w"> </span>
<a id="line-1141" name="line-1141"></a><span class="w">					   </span><span class="n">ExtFunction</span><span class="p">,</span><span class="w"> </span><span class="n">ExtData</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span><span class="w"> </span><span class="o">&amp;</span><span class="n">ExtData</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<a id="line-1142" name="line-1142"></a><span class="w">		      </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-1143" name="line-1143"></a><span class="w">		      </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">GIF_ERROR</span><span class="p">);</span>
<a id="line-1144" name="line-1144"></a><span class="w">	      </span><span class="p">}</span>
<a id="line-1145" name="line-1145"></a><span class="w">              </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">ExtData</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<a id="line-1146" name="line-1146"></a><span class="w">                  </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">DGifGetExtensionNext</span><span class="p">(</span><span class="n">GifFile</span><span class="p">,</span><span class="w"> </span><span class="o">&amp;</span><span class="n">ExtData</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-1147" name="line-1147"></a><span class="w">                      </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">GIF_ERROR</span><span class="p">);</span>
<a id="line-1148" name="line-1148"></a><span class="w">                  </span><span class="cm">/* Continue the extension block */</span>
<a id="line-1149" name="line-1149"></a><span class="w">		  </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">ExtData</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">NULL</span><span class="p">)</span>
<a id="line-1150" name="line-1150"></a><span class="w">		      </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">GifAddExtensionBlock</span><span class="p">(</span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlockCount</span><span class="p">,</span>
<a id="line-1151" name="line-1151"></a><span class="w">					       </span><span class="o">&amp;</span><span class="n">GifFile</span><span class="o">-&gt;</span><span class="n">ExtensionBlocks</span><span class="p">,</span>
<a id="line-1152" name="line-1152"></a><span class="w">					       </span><span class="n">CONTINUE_EXT_FUNC_CODE</span><span class="p">,</span><span class="w"> </span>
<a id="line-1153" name="line-1153"></a><span class="w">					       </span><span class="n">ExtData</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span><span class="w"> </span><span class="o">&amp;</span><span class="n">ExtData</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">GIF_ERROR</span><span class="p">)</span>
<a id="line-1154" name="line-1154"></a><span class="w">                      </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">GIF_ERROR</span><span class="p">);</span>
<a id="line-1155" name="line-1155"></a><span class="w">              </span><span class="p">}</span>
<a id="line-1156" name="line-1156"></a><span class="w">              </span><span class="k">break</span><span class="p">;</span>
<a id="line-1157" name="line-1157"></a>
<a id="line-1158" name="line-1158"></a><span class="w">          </span><span class="k">case</span><span class="w"> </span><span class="no">TERMINATE_RECORD_TYPE</span><span class="p">:</span>
<a id="line-1159" name="line-1159"></a><span class="w">              </span><span class="k">break</span><span class="p">;</span>
<a id="line-1160" name="line-1160"></a>
<a id="line-1161" name="line-1161"></a><span class="w">          </span><span class="k">default</span><span class="o">:</span><span class="w">    </span><span class="cm">/* Should be trapped by DGifGetRecordType */</span>
<a id="line-1162" name="line-1162"></a><span class="w">              </span><span class="k">break</span><span class="p">;</span>
<a id="line-1163" name="line-1163"></a><span class="w">        </span><span class="p">}</span>
<a id="line-1164" name="line-1164"></a><span class="w">    </span><span class="p">}</span><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">RecordType</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">TERMINATE_RECORD_TYPE</span><span class="p">);</span>
<a id="line-1165" name="line-1165"></a>
<a id="line-1166" name="line-1166"></a><span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">GIF_OK</span><span class="p">);</span>
<a id="line-1167" name="line-1167"></a><span class="p">}</span>
<a id="line-1168" name="line-1168"></a>
<a id="line-1169" name="line-1169"></a><span class="cm">/* end */</span>
</pre></div></td></tr></table></div>

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